- augmented complex
- augmented matrix
- augmented monoid
- augmenter
- augmention
- augur
- augural
- augury
- august
- augustan
- auk
- aulic
- aulophyte
- aulostomatous
- aumbry
- aunt
- aunt sally
- auntie
- aura
- aural
- aural caculus
- aural carrier
- aural detection
- aural detector
- aural harmonic
- aural monitoring
- aural nystagmus
- aural perception
- aural presentation
- aural reception
- aural signal
- aural surgery
- aural transmitter
- aural warning
- aurally
- aureate
- aurelia
- aurelian
- aureola
- aureole
- aureomycin
- auric
- auricle
- auricled
- auricula
- auriculae
- auricular
- auricular arc
- auricular glaucoma
- auricular groove
- auricular index
- auricular ligament
- auricular tubercle
- auricularis
- auriculate
- auriculo-ventricular
- auriculopressor reflex
- auriferous
- auriferous pyrite
- auriferous quartz
- auriferous sand
- auriform
- auriga
- aurignacian
- aurilave
- aurinasal
- auris external
- auris internal
- auriscope
- aurist
- auriularia
- aurochs
- aurogauge
- aurora
- aurora-australis
- aurora-borealis
- aurora-polaris
- auroral
- auroral blackout
- auroral disturbances
- auroral hiss
- auroral zone
- aurrent lathe
- aurreomycin ice
- aurum
- auscultate
- auscultation
- auspicate
- auspice
- auspices
- auspicious
- auspiciousness
- aussie
- austenite
- auster
- austere
- austerely
- austereness
- austerity
- austerity budget