Psychol. accomplishment (or achievement) ratio
• (or A/R) account receivable
• acid resisting
• acrylic rubber
• Med. acute rejection
• Physiol. adrenergic receptor (or adrenoceptor)
• advice of receipt
• airline flight code for Aerolineas Argentinas
• (Poland ) Agencja Robotnicza (Workers' Press Agency)
• (USA ) airman recruit
• Altesse Royale (French: Royal Highness)
• Chem. analytical reagent
• Physiol. androgen receptor
• Anna Regina (Latin: Queen Anne)
• (ital.) Annual Register of World Events
• annual report
• Taxation annual return
• Med. aortic regurgitation
• Numismatics argentum (Latin: silver)
• US postcode for Arkansas
• Army Regulations
• Image technol. aspect ratio
• Assistant Resident
• Associated Rediffusion
• Autonomous Region
• Autonomous Republic
• British fishing port registration for Ayr
• British vehicle registration for Chelmsford