| A | A subgroup |
| Aberrant clone | Aberrant gene |
| Absorbed anti-A 1 | Absorption |
| Accessible antigens | Accessory cells |
| ACD | Acetate Ringer's solution |
| α chain of immunoglobulin | Acquired antigen |
| Acquired B | Acquired immunodeficiency syndrome (AIDS) |
| Acquired tolerace | Actinomycin D |
| Activated protein C | Active center |
| Acyclovir | Adaptor molecule |
| Additive solution | Adenosine triphosphate |
| Adenylcyclase | Adhesion |
| Adhesion molecules | Adjuvant |
| Adoptive immunity | Adoptive immunotherapy |
| Adsorption | Adverse effects |
| AFC | Agglomeration |
| Agglutinates | Agglutination |
| Agglutinin | Agglutinogen |
| Agglutinoid | Aggregation |
| Agonist | AIDS-related complex (ARC) |
| Alamine aminotransferase (ALT) | Albumin |
| Albumin-agglutinating phenomenon | Allele,allelomorph,又は allelic gene |
| Allergen | Allergic death |
| Allergic disease | Allergy |
| All-,Allo- | Alloantibody,isoantibody |
| Alloantigen,isoantigen | Allocytophilic antibody |
| Allogenecic | Allogeneic disease |
| Allogeneic inhibition | Allograft,homograft |
| Alloimmune,isoimmune | Allosteric protein |
| Allotypes | Allotype proteins |
| Alternative complement pathway | Alternative pathways of coagulation activation |
| Amino acid | Amino acid residure |
| Amino terminal | Amino acid sequence |
| Amino acid side group | Aminoacyl adenylate(AA～ AMP) |
| Aminoacyl synthetase | Amino group |
| Amniocentesis | Amniotic fluid |
| Amorphic gene | Amphipathic |
| Anabiosis | Anamnestic response,recall phenomenon or memory phenomenon |
| Anaphylactic antibodies,anaphylactogenic antibodies | Anaphylatoxin |
| Anaphylaxis,acute | Anemia |
| Angstrom | Anisoylated |
| Anomer | Anomer carbon |
| Antagonist | Antecubital |
| Anti-A1 lectin | Anti-antibodies |
| Anti-anti-M | Antibody |
| Antibody-reaction site,antigen-binding site,antibody-combining site | Antibody repertoire |
| Antibody response | Antibody screening test |
| Anti-C | Anticoagulant |
| Anti-complement activity | Antigen,(Ag) |
| Antigen-antibody reaction | Antigen epitope |
| Antigenic determinant | Antigenic factor |
| Antigenic paralysis | Antigenicity |
| Antigenize | Antigen presenting cells |
| Antigen tolerance | Antiglobulin test |
| Antigram | Antihemophilic factor(AHF) |
| Anti-H lectin | Anti-human globulin |
| Anti-lymphocyte serum(ALS) | Anti-M lectin |
| Anti-N lectin | Antiphosholipid antibody syndrome |
| Antithetical | Anti-thymocyte globulin (ATS) |
| Anti-T lectin | Antiviral drugs |
| APC | Apoptosis |
| Arachidonic acid cascade | Arrhenius equation |
| Arthus reaction | ASL |
| ASPAC | Aspirin |
| A+T/G+C ratio | Atopy |
| ATP | ATPase |
| ATS | Atypical agglutinin |
| Atypical antibody | Autoadsorption |
| Auto-agglutinin | Autoantibodies |
| Autoantibody disease | Autoantigen |
| Autocrine | Autocrine hypothesis |
| Autologous donation | Autograft |
| Autoimmune disease、autoallergic disease、autoantibody disease | Autologous |
| Aurologous bone marrow transplantation | Autologous mononuclear cell therapy |
| Autoradiograph | Autoradiography |
| Autosome | Avidity of an antiserum |
| B | Bactericidal permeability increasing protein |
| Bacteriolysis | Base analogue |
| Base pairing rule | Basic amino acid |
| B cell | Beck's triad |
| Bence Jones proteins | Beta-structure |
| Bethesda units | Bg antigens |
| Bilirubin | Biological clock |
| Biological response modifiers | Biphasic |
| Black lipid membrane | Blastogenesis |
| Blastogenic factors(BF) | Blocked cells |
| Blocking antibody | Blood container |
| Blood group antigens | Blood group substances |
| Bohr effect | Bombay phenotype |
| Bolus | Bovine albumin |
| BPI | BRM |
| Bromelin | Buffer |
| Bulbus cranialis venae jugularis | Buoyant density |
| Bursa of Fabricius | |
| C | C3 convertase |
| C3a | C5a |
| Cadaveric blood transfusion | Calyx |
| Capsid | Caramelization |
| Carbonyl radical (またはgroup) | Carboxylation |
| Cardiac output | Cardiolipin |
| Carrier | Carrier sate of infection |
| Caspases | Cathepsin |
| Categoric identification of antibodies(CIA) | Caveolae |
| CD-95 | cDNA |
| CDR | ced |
| Cell | Cell-associated antibodies,cell-bound antibodies |
| Cellular affinity | Cellular receptors for IgG |
| Cell transfer | Center for biological evaluation and research(CBER) |
| Centers for Disease Control (CDC) | Ceramide |
| Chemically modified antisera | Chemical shift |
| Chemical splencectomy | Chiasma |
| Chimera | Chirality |
| Chloroquine diphosphate | Chromatid |
| Chromomere | Chromosome |
| Cis-AB | Cis position |
| Cis-product antigens | Cisterna, cistrernae |
| Cistron | Citrate |
| Citrate phosphate dextrose (CPD) | Citrate phosphate dextrose adnine (CPDA-1) |
| Citrate toxicity | Class I major histocompatibility complex molecules |
| Class Ⅱ major histocompatibility complex molecules | Class switching |
| Clathrin | Cinical endpoints |
| Clone | Closely linked genes |
| Coated cells | Code |
| Coding triplet | Codominace |
| Codominant genes | Codominant traits |
| Codon | Cold agglutinin |
| Cold panel | Cold shock |
| Colligative property | Colony |
| Commensalism | Committed cell |
| Compatible | Compatible blood |
| Complement(C) | Complement activation |
| Complement fixation | Complementarity determining region |
| Complementation test | Complementary structure |
| Complete antibodies | Compromised host |
| Conditioning | Conformation |
| Conglutination | Conjugation |
| Consanguineous marriage | Constant region |
| Continuous flow apheresis | Coombs test |
| Cord blood | CR |
| Critical micelle concentration | Crossing-over |
| Cryophylactic agent | Cryoprecipitate |
| Cryopreservation | Cryoprotectant |
| Cryptagglutinoid | CURL endosome |
| Cutaneous anaphylaxis | Cyclic AMP |
| Cyclophosphsmide | Cyclosporin A |
| Cytapheresis | Cytokine |
| Cytolysin | Cytomegalovirus(CMV) |
| Cytophilic antibodies, cytotropic antibodies | Cytoplasmic granules |
| D | Da |
| Dalton | Day 0 |
| 3,5-Dibromo-4-nitrosobenzene sulfonate(DBNBS) | Deep freezer |
| 00 defensins | Deferral period |
| Deglycerolization | Delayed sensitivity |
| Deletion | Denaturation |
| Dendritic cells | Dendritic leukocytes |
| de novo synthesis | Deoxygalactose |
| Deoxynucleoside | Deoxyribonucleotide |
| Desensitization | Desetope |
| Desmopression | Detergents |
| Determinant sugar | Diapedesis |
| Diastolic blood pressure | Dielectric constant |
| Dimer | Dimethylsulfoxide (DMSO, Me 2 SO) |
| 2,3-diphosphoglycerate(2,3-DPG) | Diploid state |
| Direct antiglobulin test | Direct donation |
| Disseminated intravascular coagulation(DIC) | Disulfide bond |
| Dithiothreitol(DTT) | DLT |
| DNA(Deoxyribonucleic acid) | DNA probe |
| DNase | DNA typing |
| Dominant gene | Dominant trait |
| Donath-Landsteiner test | Donor |
| Dosage effect | Downregulation |
| ds | Dysgammaglobulinemias |
| E | Ebola virus |
| EDRF | Eicosanoid |
| Eicosapentaenoic acid | Electromagnetic waves |
| Electron pair | Electron transport |
| Electrophoresis | ELISA |
| Eluate | Elution |
| Endonuclease | Endosome |
| Endotherial-derived-relaxing factor | Endothelin |
| Enhancement | Entropy |
| Envelope | Enzyme |
| Enzyme linked immunosorbent assay(ELISA) | Episome |
| Epitope | Epstein-Barr virus(EBV) |
| E rosett | Erythroblast |
| Erythroblastosis fetalis | Erythropoiesis |
| Ethylenediaminetetraacetic acid | Eukaryote |
| Exchange transfusion | Exonuclease |
| Expected increment | Extravascular hemolysis |
| Extrinsic | |
| F | F 1 |
| F 1 hybrid | F 1 hybrid disease |
| Fab | F(ab')2 |
| Factor | Factor V Leiden abnormality |
| Factor H | Factor I |
| Familial hypercholesterolemia | Fas |
| Fc | Febrile nonhemolytic transfusion reaction(FNHTR) |
| FEIBA Ｒ | Fenton reaction |
| Fertility factor(F+ ) | Fertilization |
| Fibrinogen | Ficin |
| Ficoll-hypaque | Fluorescein isothianate |
| Fluorescent antibody technique | Food and Drug Administation (FDA) |
| Forssman antigens | Forward failure |
| Forward grouping | Framework regions |
| Free radicals | Freezing |
| Fresh frozen plasma | Freund's adjuvant |
| FTCRC:(Frozen thawed concentrated red cells) | Fucose (L-) |
| Full house | |
| G | Gamate |
| Gamma globulin | Gammopathy |
| Gastric mucin | Gene |
| Gene complex | Gene redundancy |
| Gene therapy | Genetic code |
| Genetic information | Genetic map |
| Gene transfer | Genome |
| Genotype | Germ line |
| Glanzmann's disease | Globoside |
| Globulin | Glucans |
| Glucose | α-Glycerol |
| Glycerolization | Glycocalyx |
| Glycophorin | Glycosaminoglycans |
| Glycoside | Glycosyl bonds |
| Glycosphingolipids | Golgi apparatus |
| Graft versus host disease | Graft-versus-leukemia reaction. |
| Granules | Granulocyte |
| Gray | Greek |
| Group specific substance | GVHD |
| GVHL | GVL |
| Gy | |
| H | HA-lA |
| Haldane 効果 | Haploid(State) |
| Haplotype | Hapten |
| Haber-Weiss reaction | Heat shock protein |
| Heavy isotope | HeLa cell |
| Helix | Hemagglutinin |
| Hemagglutination | Hematocrit |
| Hematopoiesis | Hemisoantibody |
| Hemisoimmune disease(HHD), Rh disease,hemisoantibody disease | Hemoglobin(Hb) |
| Hemolysin | Hemolysis(haemolysis) |
| Hemolytic | Hemolytic anemia |
| Hemolytic antibodies | Hemolytic disease of the newborn (HDN) |
| Hemolytic transfusion reaction | Hemophilia A |
| Hemophilia B | Hemosiderosis |
| Heparin | Hepatitis |
| Hepatitis B immunoglobulin (HBIG) | Hepatitis B vaccine |
| Hereditary Disease | Hetero |
| Heteroagglutinin | Heterochromation |
| Heterogous | Heterogeity |
| Heterophile antibodies | Heterophile antigens |
| Heterosis | Heterospecific pregancy |
| Heterozygous | HEVs |
| Hexosamine | High endothelial venules |
| High-incidence antigen | High responder |
| High-risk group | High-titer, low-avidity antibody (HTLA) |
| Hinge region | Histocompatibility antigens |
| Histotope | HLA |
| Homing | Homo |
| Homologous | homologous adsorption |
| Homologous blood | Homologous chromosome |
| Homologous disease | Homologous serum jaundice |
| Homozygous | HPA |
| Hr | Human immunodeficiency virus (HIV) |
| Humanized antibody | Human platelet antigens |
| Human T-cell lymphotropic virus, type I (HTLV-I) | Humoral antibodies |
| Hybrid | Hybridoma |
| Hydatid cyst fluid | Hydration |
| Hydrogen bond | Hydrogen transport |
| Hydrophobic | Hydrophobic bonding |
| Hydrops foetalis | Hydroxyethyl starch (HES) |
| Hyperimmunisation | Hypersensitive |
| Hypertonic solution | Hypertransfusion |
| Hypogammaglobulinemia | Hypotonic shock response |
| Hypovolemia | |
| I | Ia |
| I antigen | Iatrogenic blood loss |
| Icterus | Icterus gravis neonatorum |
| Idiopathic | Idiopathic thrombocytopeniC purpura (ITP) |
| Idiotype | ４N |
| IL | Immediate type hypersensitivity |
| Immune | Immune adherence |
| Immune clearance | Immune complex |
| Immune response | Immunisation |
| Immunity | Immunize |
| Immunocompetent | Immunocompromise |
| Immunocompromised hosts | Immunocompromised individuals |
| Immunocyte, Immunocompetent cell, antigen-sensitive cell | Immunodominant |
| Immunodominant sugars | Immuno-electrophorsis |
| Immunofluorescent assay (IFA) | Immunogen |
| Immunogenetics | Immunoglobulin |
| Immunologic enhancement | Immunologic tolerance,tolerance\antigenic or |
| immunological paralysis immunologic suppression,immunologic unresponsiveness,antigen tolerance | Immunologically competent cell |
| Immunostimulant cells | Immunostimulation |
| Immunosuppressive drug | Immunnotherapy |
| Immunotoxins | Inaccessible antigen |
| Inactivation of serum | Inbred strain |
| Incompatible | Incomplete antibody |
| Incubate | Incubation |
| Informed consent | Inducible cell,antigen-inducible cell,virgin lymphocyte,X-cell |
| Infection | Inhibition |
| Inhibition technique | INR |
| Integral membrane protein | Interdigitating cells\ interdigitating dendritic cells |
| Interdisciplinary | Interferon |
| Intergenic suppression | Interleukin(s) |
| Interleukin-2 receptor | Intermittent flow apheresis |
| Interphase | Intragenic suppression |
| Intraoperative hemodilution | Intraoperative salvage |
| Intrauterine transfusion | Intravascular hemolysis |
| Intrinsic | In vivitro |
| In vivitro protein synthesis | In vivo( ラテン語) |
| In vivo purging | Ionic strength |
| Ionophore | Irregular antibody |
| Iso | Isoagglutinin |
| Isoantibody | Isoantigen |
| Isoform | Isogen(e)ic |
| Isograft | Isohemagglutinin |
| Isoimmune alloimmune\isoimmunization | Isologous |
| Isotonic solution | Isotype |
| IUPAC | |
| J | J-chain |
| Jugular venous bulb oxygen saturation | |
| K | Karyotype |
| Kernicterus | Kleihauer-Betke stain |
| Kupffer cells | |
| L | LAK |
| Langerhans cells | Lectins |
| Leucapheresis | Leucocyte |
| Leukoagglutinin | Leukocyte-poor blood product |
| Leukotriene | Leukosis |
| Liberation | Life span |
| Ligand | Liley graph |
| Linkage disequilibrium | Linked genes |
| Lipids | Lipoprotein |
| † スベドベリ単位 | Liquid crystal |
| LISS | Locus(複数 loci) |
| ◎Log | Lone pair |
| Long terminal repeat | Louis' angle |
| Low-incidence antigen | Low ionic-strength solution (LISS) |
| Low systemic vascular resistance | LP cell, large pyroninophilic cell |
| LT | LTR |
| Ludwig's angle | Lymphocyte transformation |
| Lymphoid cell | Lymphoid follicle, germinal center(GC), lymphocytopoietic nodule, secondary ly mphoidfollicle |
| Lymphokine(s) | Lymphoma |
| Lysis | Lysosome |
| M | MAC(Membrane attack complex) |
| Major crossmatch | Major histocompatibility complex |
| Major histocompatibility complex restriction | Macrophage |
| Malaria | Map units |
| Marker | Massive transfusion |
| Mast cells,tissue mast cells\blood basophils | Maternal transmisson |
| Mcleod phenotype | M component |
| Mediator | Megakariocyte |
| Meiosis | Membrane attack complex |
| Membrane proteins | Memory cells |
| (2-ME) | Mesangium |
| Mesangial cells | Messenger RNA(mRNA) |
| Metabolic pathway | Methemoglobin |
| Methylene blue | MHC |
| MHC restriction | Michaelis constant |
| Microaggregates | Microbe |
| Microlymphocytotoxicity test | Minor crossmatch |
| Minus strand | Mithridatism |
| Mitogens | Mitosis |
| Mixed field agglutination | Mixed lymphocyte culture (MLC) |
| Mobile DNA element | Modifying gene |
| Molal solution | Molar fraction |
| Molar solution | Monoclonal |
| Monokine | Monomer |
| Mononuclear cells | Mononuclear phagocyte system |
| Monospecific antiglobulin reagent | Monozygotic twins |
| Mosaic | Mosaic Ｄu |
| Mucopolysaccharaide | M protein |
| Multiparous | Multiple myeloma |
| Mutation | Mutualims |
| Myeloma | |
| N | Naturally occurring antibody |
| Negative selection | Nick |
| Non-red cell-immune | Nonsecretor |
| Notation | Nuclear matrix |
| Nucleosome | Null phenotype |
| O | Oligosaccharide |
| Omenn syndrome | Open reading frame |
| Operator | Operon |
| Opsonin | Opsonization |
| Optical anisotropy | Organelles |
| Osmolality | Ovum |
| Oxidation | Oxygenation |
| Oxygen radical | |
| P | P 50 |
| p53 | Packedｒed cells |
| Packing ratio | PAI-1 |
| Palindrome | Pan-agglutinin |
| Panagglutination | Pan-agglutinable cells |
| Panel of cells | PAP |
| Papain | Parabiosis |
| Paragloboside | Paraproteins |
| Parasite | Parasitism |
| Paratope | Paroxismal cold hemoglobinuria (PCH) |
| Parvovirus | Passivation |
| Psssive cutaneous anaphy axis(PCA) | Passive hemagglutination |
| Passive immunity | Paternity testing |
| Pathogen | Pathogenism(new term) |
| PC | PCR |
| Pentoxifylline | Peptide bond |
| Periodic table of elements | Perioral paresthesia |
| PFC | Phagocytic index |
| Phagocytin | Phagocytosis |
| Phagolysosome | Phagosome |
| Phenotype | Phlebotomy |
| Phospholipase A 2 | Photodegradation |
| Photoreactivation | Phthalate esters |
| Phytohemagglutinin(PHA) | PIC |
| Pinocytosis,microphagocytosis | Plasma |
| Plasma cell | Plasma exhange |
| Plasma membrane | Plasma protein fraction(PPF) |
| Plasmapheresis | Platelets |
| Platelet granules | Pleiotropic |
| Pluripotent hematopoietic progenitor cells | Plus strand, positive strand,positive polarity |
| Point mutation | Polarrity |
| Polyagglutinable red cells | Polybrene |
| Polyclonal | Polyethylene glycol(PEG) |
| Polymer | Polymerase chain reaction (PCR) |
| Polymorphism | Polysaccharide |
| Polyspecific antiglobulin reagent | Positional cloning |
| Position effect | Postoperative salvage |
| Posttransfusion purpura | Posttransfusion sample |
| Postzone | Potency |
| PR | Prausnitz-K7stner antibodies, P-K antibodies, reagins, skin-sensitizing antibodi es, atopic antibodies |
| Precapillaty sphincter | Precipitin |
| Precursor substance | Predeposit autologous donation |
| Preload | Pretransfusion sample |
| Pretransfusion testing | Prewarmed technique |
| Primary immune response | Primary protein structure |
| Primed cell | Prions |
| Private antigen | Probability |
| Proficiency testing | Progenitor cells |
| Programmed cell death | Prokaryote |
| Properdin | Propositus |
| Protamine titration | Ptotease |
| Protein C | Protein kinase |
| Proteolytic enzyme | Protocol |
| Proton pump | Proto-oncogene |
| Protracted anaphylaxis | Provirus |
| Prozone phenomenon | Pseudoagglutination |
| Pseudomucinous ovarian cyst fluid | Public antigen |
| Pump | Pulmonary surfactant |
| Pulsed-field electrophoresis | Putative |
| Pyrogen | |
| Q | Quasistatic compliance |
| R | Racemic compound |
| Radiation | Radioimmunoassay (RIA) |
| Random donor platelets | RANTES |
| Raoult's law | Rare donor file |
| Reaction of identity | Reagin |
| Receptor | Recessive gene |
| Recessive trait | Recipient |
| Reciprocal | Recombinant |
| Recombinant human erythropoitin (r-HuEPO) | Recombinant technology |
| Recombination | Recovery in vivo |
| Red Blood Cells, In vivo life-span due to preservation temperature | |
| Reducing end | Reducing equivalent |
| Regulator gene | Rejuvenation |
| Release | Renaturation |
| Repair replication | Repertoire |
| Replicating fork | Replication |
| Repressor | Respiratory chain (electron transport) |
| Responding cell | Restriction enzyme |
| Restriction fragment length polymorphism(RFLP) | Reticulocyte |
| Retrotransposon | Retrovirus |
| Re-used | Reverse grouping |
| Reverse transcriptase | Reverrsible posterior leukoencephalopathy syndrome |
| RFLP | Rhabdomyolysis |
| Rh disease | Rh immune globulin (RhIg) |
| Rhnull disease | RhoGAM |
| Ribonucleic acid (RNA) | Ribonucleotide |
| Ribosomal protein | Ribosomal RNA |
| Ribosome | RNA |
| RNA polymerase | ρ Factor |
| Rosette formation | Rosette test |
| Rouleaux | Routine panel |
| Runt disease | |
| S | Salt bridge |
| Saline antisera | Salvaged blood syndrome |
| Saprophyte | Scaffold |
| Schultz-Dale reaction | SCID |
| SCID mause | Score |
| S-D treatment | Second-set graft rejection |
| Secretor | Secretory component, secretory piece |
| Secretory protein | Sedimentation coeflicient and constant |
| Segregation | Selection |
| Sensitive | Sensitization |
| Scnsitization of individuals | Sensitization of red cells |
| Sensitize | Sensitized cells |
| Sepsis | Sequestrene |
| Seroconversion | Serologic marker |
| Serpin | Serum |
| Severely combined immunodeficiency syndrome | Sex chromosomes |
| Shelf life | Shell |
| Shwartzman reaction | Sialic acid |
| Sia test | Siblings |
| Signal Transduction | Silent gene |
| Single donor platelets | Solenoid structure |
| Solid-phase technique | Soluble antigen |
| Solvent-detergent treatment | Somatic cells |
| Somatic mutation | Specific activity |
| Specificity | Speed shock |
| Spherocytosis | Sphingolipid |
| Spontancous mutation | SRBC |
| SRSA | ss |
| S-S bond | Standard operating procedure (SOP) |
| Stem cell | Sterile docking device |
| Stimulating cell | Stimulator |
| Stoichiometric | Storage lesion |
| Stress protein | Subgroups |
| Superantigen | Superoxide |
| Supplemented phase diagram | Suppressor gene |
| Surface of shear | Surfactant |
| Surrogate mother | Surrogate test |
| Survival | Svedberg( S ) |
| Symbiosis | Syncope |
| Syngeneic | Syngraft |
| Syphilis | Systolic blood pressure |
| T | T1 |
| T2 | Tachycardia |
| Tachypnea | Tail pieces |
| Tamm-Horsfall protein | Tandem repeat |
| Target cell | TAT |
| TCC | T cell |
| Telomere | Temperature sensitive mutation |
| Template | Template RNA |
| Terminal complement complex | Tertiary structure |
| Tetany | Tetramer |
| Thalassemia major | Therapeutic phlebotomy |
| Thermal amplitude | Theta (T or θ)antigen |
| Thiol reagents | Thrombin-antithrombin III complex |
| Thrombocytopathia | Thrombocytopenia |
| Thrombolysis | Thrombomodulin |
| Thrombopoietin | Tick-over activation |
| TIL | Time constant |
| Titer | Titrate |
| Titration | Tolerance |
| Total parenteral nutrition | t-PA |
| Trait | Trans － |
| Transposition | Transcription |
| Transduction | Transfection |
| Transferase | Transfer factor |
| Transfer RNA (tRNA) | Transformation |
| Transfusion | Transfusion-associated immunosuppression |
| Transfusion reaction | Transfusion syndrome |
| Translation | Translational control |
| Translocation | Transposition |
| Triplet | Triplet state |
| Trypsin | TTV |
| Tryptase | Tuberculin shock |
| Tumor infiltrating lymphocyte | Tumor necrosis factor |
| Type and screen | Typer 1 plasminogen activator inhibitor |
| Tyrosine kinase | |
| U | Ultracentrifuge |
| Ultraviolet rays radiation\ UV radiation | Unequal crossing over |
| Unit membrane | Univalent antibodis functionally univalent antibodies, nonprecipitating antibodies, incomplete antibodies, blocking antibodies |
| Urticaria | |
| V | Vaccination |
| Vaccine | van der Waals force |
| Variant | Variable region |
| Vascular leak syndrome | Vasoconstriction |
| Veiled cells | Vesicle |
| Viability | Viral-specific enzyme |
| Virion | Virulence |
| Virus | Viscosity |
| Vitamine C | Vitrification |
| VNTR | Voltage-dependent Ca2+channel |
| Volunteer donor | von Willebrand's disease |
| W | Warfarin |
| Warm antibody | Warm autoimmune hemolytic anemia (WAIHA) |
| Wash | Weak interaction |
| Weal and flare reaction | Western blot |
| Wharton's jelly | Whole blood |
| White-graft reaction | Window period |
| Wobble | |
| X | X-linked |
| Xenocytophilic antibody, heterocytotropie antibody | Xenoderma pigmentosum |
| Xenogeneic, heterologous | Xenograft, heterograft |
| Xenoimmune\ heteroimmune | X-ray crystallography |
| Y | Yersinia enterocolitica |
| Yield | |
| Z | Zeta (ζ) potential |
| Zygote | Zymogen(s) |
| Zymosan | ZZAP |
| |