- alkaline tide
- alkalinity
- alkalitherapy
- alkalizer
- alkaloid
- allantoid
- allele
- allergen
- allergic purpura
- allergic shock
- allergology
- allergosis
- alleviator
- allochiral
- allocinesia
- allodiploidy
- alloisoleucine
- allometron
- allopathic
- allopathy
- alloplasis
- alloplasmatic
- alloploidy
- allopsychic
- allopurinol
- allorhythmic pulse
- allotoxin
- allotriolith
- allotrope
- allotrophic
- alloxan
- alloxuric
- allphatic compound
- almond
- almond oil
- almoner
- alochia
- alogia
- alopecia
- alopecia areata
- alopecia hereditaria
- alopecia totalls
- aloplast
- aloplasty
- aloxidone
- aloxiprin
- alpha angle
- alpha wave
- alphalfetoprotein
- alphalytic
- alphitomorphous
- alphodermia
- altauna
- alterative
- alterent vein
- alternans
- alternaria
- alternate hemiplegia
- alternating
- alternating calculus
- alternating cleavage
- alternative inharitance
- altitude anoxia
- altitude disease
- altricious
- altunative disjunction
- alum
- aluminated
- aluminosis
- aluminum hydroxide
- aluminum silicate
- alveolalgia
- alveolar
- alveolar arch
- alveolar bone
- alveolar ectasia
- alveolar gland
- alveolar hemorrhage
- alveolar line
- alveolar phagocyte
- alveolectomy
- alveoloplasty
- alveolotomy
- alveolus
- alvine flux
- alvinolith
- alyssous
- ama
- amacrine
- amalgam alloy
- amalgamator
- amanita
- amanita pantherina
- amanita phalloidlea
- amaril
- amarillic
- amarillic typhus
- amaroidal
- amastia
- amatory