- angiocarpic
- ausculatory finding
- actinostele
- a tube
- a flume
- aqueduct
- alplinia officinarum
- atishoo
- atlano_occipital membrane
- arsenate
- aetiologist
- alkylating compound
- acetabulum
- aldehyde reaction
- acrolein
- acid fast infection
- acyl radical
- aldeyhde resin
- acrylamide
- amide linkage
- amid
- alternation of generation
- annual ring
- acanthoid
- acanthoma
- acanthotic
- androphobia
- Acris
- amphibiosis
- american alligator
- antipruritic
- anesthyl
- a short vowel
- a vow to keep quiet
- a vowel_mark in the devna:gri: and other allied scripts
- a prayer call by the muazzin
- a rider
- a roar
- a loud rebuke
- a muffled spirant sound expressive of intense joy or excessive pain
- a slight or low noise
- an explosive stuff
- a creaking or squeaking sound
- a whizzing sound
- a synonym
- a whistle
- angor animi
- a sob
- a creaking sound (as of new boots)
- a sudden scream