- aparejo
- apart
- apart-tel
- apartheid
- apartment
- apartment block
- apartment building
- apartment hotel
- apartment house
- apartment unit
- apastia
- apastron
- apatetic
- apathetic
- apathetically
- apathic
- apathy
- apatite
- apbrodisiac
- ape
- ape-like
- ape-man
- apeak
- apec
- apedicellate
- apelike
- apellous
- apenteric
- apepsia
- apepsy
- apercu
- aperient
- aperiodic
- aperiodic ammeter
- aperiodic antenna
- aperiodic circuit
- aperiodic galvanometer
- aperiodic group
- aperiodic oscillation
- aperiodic state
- aperiodic waves
- aperiodicity
- aperitif
- aperitive
- apertura piritormis
- aperture
- aperture aberration
- aperture admittance
- aperture antenna
- aperture blockage
- aperture card
- aperture circle
- aperture core
- aperture correction
- aperture coupling
- aperture distortion
- aperture effect
- aperture efficiency
- aperture field
- aperture illumination
- aperture impedance
- aperture mask
- aperture plane
- aperture stop
- aperture synthesis
- aperture vector
- aperture width
- apery
- apetalous
- apex
- apex angle
- apex block
- apex connector
- apex cordis
- apex load
- apex masi
- apex murmur
- apex pulmonis
- apex stone
- apexbeat
- aphaeresis
- aphagia
- aphakia
- aphanipterous
- aphasia
- aphasiac
- aphasic
- aphelia
- aphelia velocity
- aphelion
- apheliotropic
- apheliotropism
- aphemesthesia
- aphesis
- aphetic
- aphetion
- aphetize
- aphides
- aphidian
- aphidicide