- a vegetable (cooked or otherwise)
- a headline
- anococcygeal body
- anococcygeal raphe
- a term of greeting
- anthropohagous
- a retailer
- at work on
- a weird assortment of heterogeneous elements
- antisterility factor
- a quilt
- air_to_ground
- air_to_air
- air speed
- associated corpuscular emission
- a warder
- aortic lymph node
- anterior naris
- antituberculous activity
- air_tight
- a problem play
- amberjack
- angular error
- angular displacement
- angle of attack
- angle of collimation
- angle of rotation
- anything that infuses new life
- an old hardy man
- a salty dish prepared by boiling flour balls in
- anthony hopkins
- ambrose bierce
- arthur conan doyle
- a. e. housman
- anaphylactic reaction
- anaphylactogen
- act of purification
- anaphylactoid shock
- a revisionist
- atonic bladder
- aton
- a medico_store
- anthony charles lynton blair
- an old wives tale
- acetic anhydride
- alkalescent
- acid_base profile
- acidulated rock phosphate
- acid regurgitation
- anterior foot length