- all human beings
- a resident of ma:rwa:ṛ
- a magician
- an acre
- an option
- access scan
- azotic
- an admission ticket
- admirably
- ahistorical
- an advance copy
- an adze
- an advisory committee
- a pleader
- archive
- archival transfer of sound recording
- an adept in any technical field
- a legist
- adenomyomatosis
- adenomyosis
- a shrine
- abaca
- abnaki
- ambulant patient
- amniochorion
- amnio ectodermal junction
- audio amplifier
- amplifier gain
- ashur
- ashtoreth
- a philosopher
- allergic asthma
- allergic cheilitis
- allergic angitis
- allergic dermatitis
- allergic dermatosis
- allergic
- alpha photo protein
- alkylation
- alcholised
- acetum
- as miserable as sin
- as much again
- acetyl coenzyme a
- as it happens
- as it turned out
- aceto_bromo sugar
- acetonaemia
- acetylene tetrachloride
- acetaldehyde cyanohydrin