- a camouflage
- aniline
- anatoxin
- academically
- academic world
- academic administrator
- academic department
- autohaemotherapy
- adenomatous goitre
- an expression of indigation and contempt
- aarons rod
- a dark facial freckle
- aglucone
- address conversion
- address track
- aecidiospore
- address stop
- animadvert
- active juvenile cirrhosis
- acute poisoning
- arithmetic expression
- antigoitrigenic
- adrenogenital syndrome
- adrenal exhaustion
- acute benign pericarditis
- arabia
- art of behaviour
- antiprotozoal drug
- antiglobulin test
- at intervals
- affirmable
- animal danders
- abrading stone
- antimortem
- at the double
- ablative absolut
- absolute instruction
- a trail
- apparent horizon
- allergen
- antisplash device
- anxiety state
- anxiety neurosis
- april
- all_seeing
- a caprice
- a reservoir for mixing lime and mortar
- abasia atactica
- a subordinate tale or story
- anti_inaflammatory