- AZ
- Az Zarqa
- Azactam
- Azadirachta
- Azadirachta indica
- azadirachtin
- azalea
- Azaleastrum
- azathioprine
- azedarach
- azederach
- Azerbaijan
- Azerbaijani
- Azerbaijani monetary unit
- Azerbaijani Republic
- Azerbajdzhan
- Azerbajdzhan Republic
- Azeri
- azide
- azido
- azido group
- azido radical
- azimuth
- azimuthal
- azithromycin
- azo
- azo dye
- azo group
- azo radical
- azoic
- azoimide
- Azolla
- Azolla caroliniana
- Azollaceae
- azonal
- azonic
- Azores
- azotaemia
- azote
- azotemia
- azotemic
- azotic
- azoturia
- AZT
- Aztec
- Aztec lily
- Aztec marigold
- Aztecan
- aztreonam
- azure
- azure aster
- azurite
- azygos
- azygos vein
- azygous
- azygous vein
- azymia