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A i accommodation
  ii adenine
  iii ampere
  iv anode (anodal)
  v anterior
  vi Assistant
  vii axial
  viii mass number
 
A2 aortic second sound
 
Å angstrom
 
(A-a)PO2 alveolar-arterial oxygen tension difference
 
A-mode amplitude mode
 
A site amino-TRNA binding site
 
AA arachidonic acid
 
aa ana (of each) in prescriptions (Gk)
 
a.a. amino acid
 
aa. arteries (L: arteria)
 
AAprotein product of alphaglobulin & major portion of reactive amyloid
 
AAA i Animal Acupuncture Academy
  ii aromatic amino acid
 
AAABEM American Association of Acupuncture & Bio-Energetic Medicine
 
AAALAC Association for Assessment & Accreditation of Laboratory Animal Care-International
 
AAAP i American Association of Avian Pathologists
  ii Asian-Australasian Association of Animal Production Societies
 
AAAS American Association for the Advancement of Science
 
AABP American Association of Bovine Practitioners
 
AAEP American Association of Equine Practitioners
 
AAEM American Association of Electrodiagnostic Medicine
 
AAFCO American Association of Feed Control Officials
 
AAFHV American Association of Food Hygiene Veterinarians
 
AAFP American Association of Feline Practitioners
 
AAHA American Animal Hospitals Association
 
AAHC Australian Animal Health Council
 
AALA American Association for Laboratory Accreditation
 
AALAS American Association for Laboratory Animal Science
 
AAN Action for Animals Network
 
AAOM American Association of Oriental Medicine
 
AAPHV American Association of Public Health Veterinarians
 
AAPM American Academy of Pain Management
 
AAPS American Association of Pharmaceutical Scientists
 
AAS i atlantoaxial subluxation
  ii atomic absorption spectrometry
 
AASP American Association of Swine Practitioners
 
AASRP American Association of Small Ruminants Practitioners
 
AAT alpha-1-antitrypsin
 
AAUAAA sequence polyadenylation
 
AAV Association of Avian Veterinarians (USA)
 
AAVA American Association of Veterinary Anatomists
 
AAVC American Association of Veterinary Clinicians
 
AAVCB Australian Association of Veterinary Conservation Biologists
 
AAVDM American Academy of Veterinary Disaster Medicine
 
AAVI i American Academy of Veterinary Informatics
  ii American Association of Veterinary Immunologists
 
AAVLD American Association of Veterinary Laboratory Diagnosticians
 
AAVMC Association of American Veterinary Medical Colleges
 
AAVP American Association of Veterinary Parasitologists
 
AAVPT American Academy of Veterinary Pharmacology & Therapeutics
 
AAVSB American Association of Veterinary State Boards
 
AAWV American Association of Wildlife Veterinarians
 
AAZK American Association of Zoo Keepers
 
AAZV American Association of Zoo Veterinarians
 
Ab antibody
 
ABAO Association of British Abattoir Owners
 
ABB Brazilian Veterinary Cattle Association
Associação Brasileira de Buiatria
 
ABC i aspiration biopsy cytology
  ii avidin-biotin complex
  iii airway, breathing, circulation
 
ABDCH Association of British Dogs’ and Cats’ Homes
 
ABDH Association of British Dogs’ Homes
 
Aber University of Aberdeen
 
ABKA American Boarding Kennels Association
 
ABLE Association for Biology Laboratory Education
 
ABP androgen binding protein
 
ABPEE acute bovine pulmonary enphysema-oedema (or ABPE)
 
ABPI Association of the British Pharmaceutical Industry
 
ABR test abortus-Bang-ring test
 
ABRAVAS Brazilian Small Animal Veterinary Association
Associacao Brasileira de Veterinaros de Animais Selvagens
 
ABRO Animal Breeding Research Organisation (Edinburgh)
 
ABS i Animal Behaviour Society (USA)
  ii Association of Buiatrics for Slovenia
 
ABSA American Biological Safety Association
 
ABVA Association of British Veterinary Acupuncturists (BSAVA)
 
ABVP American Board of Veterinary Practitioners
 
ABVT American Board of Veterinary Toxicology
 
a.c. alternating current
 
Ac before meals (L. ante cibum)
 
ACAF Advisory Committee on Animal Feedingstuffs
 
ACAHF Australian Companion Animal Health Foundation
 
ACAM American College for Advancement in Medicine
 
ACAPHS Advisory Committee on Agricultural Product Health & Safety (European Commission)
 
ACAT acyl CoA (cholesterol acyltransferase)
 
ACD acid citrate dextrose (sodium citrate, citric acid, dextrose)
 
ACDP Advisory Committee on Dangerous Pathogens
 
ACE angiotensin-converting enzyme
 
ACEi angiotensin converting enzyme inhibitor
 
ACENTO Animal Care & Equine National Training Organisation (now Lantra)
 
AcG accelerator globulin (clotting factor V)
 
ACGM Advisory Committee on Genetic Modification
 
ACh acetylcholine
 
AChE acetylcholinesterase
 
ACHHF Animal Chiropractic & Holistic Health Forum
 
ACIArb Associate of the Institute of Arbitrators
 
ACIVET Portuguese Scientific Veterinary Association
Associação para o Desenvolvimento das Ciências Veterinarias
 
ACLAD American Committee on Laboratory Animal Diseases
 
ACLAM American College of Laboratory Animal Medicine
 
ACMSF Advisory Committee on the Microbiological Safety of Food (UK)
 
ACN Aquatic Conservation Network
 
ACP i acepromazine
  ii acyl carrier protein
  iii Advisory Committee on Pesticides (UK)
  iv Association of Circus Proprietors
 
ACPAT Association of Chartered Physiotherapists in Animal Therapy
 
ACPV American College of Poultry Veterinarians
 
ACSH American Council on Science & Health
 
ACSMA American Canine Sports Medicine Association
 
ACT i activated clotting time
  ii American College of Theriogenologists
 
ACTH adrenocorticotropic hormone
 
ACVA American College of Veterinary Anaesthetists
 
ACVB American College of Veterinary Behaviourists
 
ACVCP American College of Veterinary Clinical Pharmacology
 
ACVD American College of Veterinary Dermatology
 
ACVECC American College of Veterinary Emergency & Clinical Care
 
ACVIM American College of Veterinary Internal Medicine
 
ACVM American College of Veterinary Microbiologists
 
ACVN American College of Veterinary Nutrition
 
ACVO American College of Veterinary Ophthalmologists
 
ACVP American College of Veterinary Pathologists
 
ACVPM American College of Veterinary Preventive Medicine
 
ACVR American College of Veterinary Radiologists
 
ACVRP Fraternal Association of Veterinarians of the Paris
Association Confraternelle des Vétérinaires de la Région Parisienne
 
ACVS American College of Veterinary Surgeons
 
ACVSc i American College of Veterinary Scientists
  ii Australian College of Veterinary Scientists
 
ACVT Advisory Committee on Veterinary Training (EU)
 
ACZM American College of Zoological Medicine
 
AD i adrenal-dependent
  ii Aleutian (mink) Disease
 
ADA American Dental Association
 
ADAS Agricultural Development Advisory Service (UK)
 
ADC i acute degenerative cardiomyopathy
  ii Association of District Councils (UK)
 
ADCC antibody-dependent cell-mediated cytotoxicity
 
ADF acid-detergent fibre
 
ADG average daily gain
 
ADGA American Dairy Goat Association
 
ADH i adrenal – dependent hyperadrenocorticism
  ii antidiuretic hormone (vasopressin)
 
ADI i acceptable daily intake
  ii average daily intake
 
ADILVA French Association of Departmental Laboratory Directors
Association Française des Directeurs et Cadres de Laboratoires Veterinaires Publics d’Analyses
 
ADITSIC Association of Veterinarians Officers of Slaughter Houses and Meat Industry ( Spain )
Asociacion de Veterinarios Oficiales de Mataderos e Industrias Carnicas
 
ad lib to amount wished (L.ad libitum)
 
ADP i adenosine diphosphate
  ii automatic data processing
 
ADPKD autosomal dominant proliferative kidney disease
 
ADR i adverse drug reaction
  ii “ain’t doing right” (colloq/US)
 
ADSA American Dairy Science Association
 
ADV Aujesky’s disease virus
 
a.e. acid equivalent
 
AE i attaching & effacing
  ii avian encephalitis (epidemic tremor)
 
A&E Accident & Emergency
 
AEA Atomic Energy Authority (UK)
 
AEB American Egg Board
 
AEC American Egg Board Commission (USA)
 
AEDPAC Spanish Association of Distributors of Companion Animal Products
Asociatión española de distribuidores de productos para animales de compañia
 
AEEC attaching-effacing Escherichia coli
 
AEEEV European Association of Establishments for Veterinary Education
Association Europeenne des Etablissements d’Enseignement Veterinaire
 
AEEMA French Association of Veterinary Epidemiology
Association pour l’Etude de l’Epidémiologie des Maladies Animales
 
AEHV Spanish Association for the History of Veterinary Medicine
Asociacion Española de Historia de la Veterinaria
 
AEHTA Spanish Association of Homotoxicology and Antihomotoxic Therapy
Asociación Española de Homotoxicologia y Terapia Antihomotóxica
 
AEI acetylethylenimine
 
AER Atomic Energy Reserve
 
AESA Association of Epidemiology and Animal Health (Belgium)
Association d’Epidémiologie et de la Santé Animale
 
AET Spanish Toxicology Association
Asociación Española de Toxicologia
 
AETE European Embryo Transfer Association
Association Européenne de Transfert Embryonnaire
 
AEU Agrochemical Evaluation Unit (University of Southampton)
 
AEVE Spanish Equine Veterinary Association
Asociation Espanola de Veterinarios Especialistas en Equidos
 
AEVEDI Spanish Diagnostic Imaging Association
Asociation Espanola de Veterinarios Especialistas en Diagnostico por Imagen
 
AEVL Agricultural Economics Virtual Library (Texas Technical University)
 
AF as fed
 
AFA i American Federation of Aviculture
  ii American Ferret Association
 
AFB acid-fast bacteria
 
AFC French Rabbit Association
Association Francaise de Cuniculture
 
AFCV French Association of Veterinary Clinics
Association Française des Cliniques Vétérinaires (petits animaux)
 
AFD accelerated freeze-drying
 
AFDO Association of Food & Drug Officials (USA)
 
AFEW African Fund for Endangered Wildlife
 
AFFSA French Food Hygiene Agency (was CNEVA)
Agence Française de Securite Sanitaire des Aliments
 
AFH American Federation of Herpetoculturists
 
AFIA American Feed Industry Association
 
AFIP Armed Forces Institute of Pathology (USA)
 
AFLP amplified fragment length polymorphism
 
AFMVP French Pig Veterinary Association
Association Française de Medicine Vétérinaire Porcine
 
AFP alpha-foetoprotein
 
AFRC Agriculture & Food Research Council (Now absorbed into BBSRC) (UK)
 
AFRMA American Fancy Rat & Mouse Association
 
AFS American Fishieries Society
 
AFVC French Association of Veterinary Riders
Association Française de Vétérinaires Cavaliers
 
AFVE French Veterinary Experts Association
Association Française de Vétérinaires Praticiens de l’Expertise
 
AFVPZ French Association of Veterinarians in Zoological Gardens
Association Française des Vétérinaires de Parcs Zoologiques
 
AFVT French Veterinary Association of Fighting Bulls
Association Française des Vétérinaires Taurins
 
AG Association for Gnotobiotics
 
Ag i antigen
  ii chemical symbol silver (L.argentum)
 
AGAC Advanced Genetic Analysis Centre (Univ. of Minnesota)
 
AGD amoebic gill disease
 
AGID agar gel immunodiffusion
 
AGIM Pharmaceutical Association of Belgium
Association Générale de l’Industrie du Medicament
 
AGIT agar gel immunodiffusion test
 
AGM Annual General Meeting
 
AGP acid glycoprotein
 
AGPT agar gel precipitation test
 
AGQ Advisory Group on Quarantine
 
A-G ratio albumin to globulin ratio
 
AGRI Animal Grassland Research Institute (UK)
 
Agric Agriculture
 
AGS i acute grass sickness
  ii Atmosphere Generation System
 
AGVR Advisory Group on Veterinary Residues (Replaced by VRC) (UK)
 
AH aluminium hydroxide-based adjuvant
 
AHA i American Humane Association
  ii American Heart Association
 
AHEAD Animal Health/Emerging Animal Diseases
 
AH Divn Animal Health Division (MAFF)
 
AHDA Animal Health Distributors Association (UK)
 
AHDO Animal Health Divisional Office (MAFF)
 
AHF antihaemophilic factor (clotting factor viii)
 
AHG antihaemophilic globulin (clotting factor viii)
 
AHIS Animal Health Information Specialists (UK)
 
AHMA American Holistic Medical Association
 
AHO Animal Health Office
 
AHS i African horse sickness
  ii American Heartworm Society
  iii Animal Heath Service (Holland)
  iv Australian Herpetological Society
 
AHSV African horse sickness virus
 
AHT i Animal Health Trust (UK)
  ii Animal Health Technician
 
AHV-1 alcelaphine herpes virus-1
 
AHVG Animal Health & Veterinary Group (UK)
 
AI i active ingredient
  ii aortic incompetence
  iii aortic insufficiency
  iv apical impulse
  v Arthrology Institute (Univ. of Southampton)
  vi artificial insemination
 
a.i. artificial insemination
 
AIC Akaike’s Information Content
 
AIDEV Italian Association of Veterinary Dermatology
Associazione Italiana Dermatologia Veterinaria
 
AIDS acquired immune deficiency syndrome
 
AIEV Italian Association of Veterinary Epidemiology
Associazione Italiana di Epidemiologia Veterinaria
 
AIFRB American Institute of Fisheries Research Biologists
 
AIGR amended insulin to glucose rato
 
AIHA autoimmune haemolytic anaemia
 
AIMV Italian Association of Veterinarian’s Spouses
Associazione Italiana della Mogli di Veterinari
 
AIPE asphyxia-induced pulmonary oedema
 
AIRA Ibero American Association for Animal Reproduction
Asociacion Ibero Americana de Reproduccion Animal
 
AIS Australian Illawara Shorthorn (cattle)
 
AISA Association of Animal Health Industries (Italy)
Associazione Industrie Salute Animale
 
AIV avian influenza virus
 
AIVI Italian Veterinary Hygienists’ Association
Associazione Italiana Veterinari Igienisti
 
AIVPA Italian Small Animal Veterinary Association
Associazione Italiana Veterinari per Piccoli Animale
 
AIVPAFE Italian Veterinary Association of Feline Medicine
Associazione Italiana Veterinari Patalogia Felina
 
AIVRI Associateship of the Indian Veterinary Research Institute
 
AJVR American Journal of Veterinary Research
 
AKC American Kennel Club
 
Al chemical symbol aluminium
 
ALA aminolevulinic acid
 
Ala alanine
 
ALAD aminolevulinic acid dehydratase
 
ALD i acral lick dermatitis
  ii aldolase
  iii appropriate lethal dose
 
ALF Animal Liberation Front (UK)
 
ALG antilymphocyte globulin
 
ALKP/ALP alkaline phosphatase
 
Allah University of Allahabad
 
ALS i antilymphocytic serum
  ii aldolase (serum enzyme)
 
ALSV avian leucosis/sarcoma virus
 
ALT alinine aminotransferase
 
ALVHA Luxemburg Association of Veterinary Food Hygienists
Association Luxembourgeoise des Vétérinaires Hygiénistes de l'Alimentation
 
AM i Master of Arts (Harvard)
  ii alpha-macroglobulins
 
Am chemical symbol americium
 
a.m. morning (L.ante meridiem)
 
AMA American Medical Association
 
AMB i ameloblastoma
  ii amphotericin B
 
AMDUCA Animal Medical Drug Use Clarification Act (USA)
 
AMELIA Animal Medicines European Licensing Information & Advice (UK-VMD)
 
AMI i American Meat Institute
  ii area moment of inertia
  iii Association of Meat Inspectors
 
AMIA American Medical Informatics Association
 
AMLC Australian Meat & Liverstock Council
 
AMMVEPE Mexican Small Animal Veterinary Association
Asociacion Mexicana de Medicos Veterinarios especialistas en Prequenas Especies
 
AMP i adenosine monophosphate
  ii Americans for Medical Progress
 
amp i ampere
  ii ampoule
 
AMRIC Animal Medicines Research Information Centre (USA)
 
AMS i Academy of Medical Sciences
  ii alpha-amylase
  ii Australian Mammal Society
 
AMSA American Meat Science Association
 
AMTA American Massage Therapy Association
 
AMTRA Animal Medicines Training & Regulatory Authority (UK)
 
AMVA French Group of the World Veterinary Poultry Association
Groupe Français de l’Association Mondiale Vétérinaire d’Aviculture
 
AMVAC Madrid Association of Companion Animal Veterinarians
Associacion Madrilena de Veterinarios de Compania
 
AMVL Association of Veterinarians of Luxemburg
Association des Medicines-Vétérinaires du Grand-Duche de Luxembourg
 
AMVQ Academie de Medicine Vétérinaire de Quebec
 
AMVR Romanian Veterinary Association
Asociatia Medicilor Veterinari din Romania
 
AMZ Australian Milking Zebu
 
An chemical symbol actinon
 
An. i anisometropia
  ii anode
 
ANA antinuclear antibody
 
ana of each, in prescriptions, abbreviated aa (Gk)
 
Anc anconeal process
 
ANEMBE Spanish Association of Bovine Veterinarians
Asociación Nacional de Especialistas en Medicina Bovina de Espana
 
ANF atrial natriuretic factor
 
ANGIS Australian National Genomic Information Service
 
ANMV National Agency for Veterinary Medicinal Products (France)
Agence Nationale du Medicament Veterinaire
 
ANOVA analysis of variance
 
ANP atrial natriuretic peptide
 
ANS autonomic nervous system
 
ANSI American National Standards Institute
 
ANSVADM French Association of Veterinary Drug Merchants and Distributors
Association Nationale des Sociétés Veterinaires d’Achat et Distribution de Médicaments
 
ANTU alphanaphthylthiourea
 
ANV avian nephritis virus
 
ANZCCART Australian & New Zealand Council for the Care of Animals in Research & Teaching
 
ANZFA Australian-New Zealand Food Authority
 
AO Order of Australia
 
Ao/AO aorta
 
AOA American Ostrich Association