alte - annu
- amphineuran
- amphinomid
- amphioxea
- amphiphloic
- amphiphloic siphonostele
- amphiplatyan
- Amphipoda
- amphipodous
- amphisapropel
- amphistrongylons
- amphitheater
- amphitropous
- amphitylotes
- amphodelite
- amphoteric
- amphoteric chondrite
- amphoteric collector
- amphoterite
- ample coal
- amplexoid
- amplexoid coral
- amplexoid septum
- amplexus
- amplification
- amplitude
- amplitude distortion
- amplitude of crustal recoil
- ampoule
- ampulla
- ampulla cup
- amygdaloid
- amygdaloidal
- amygdaloidal basalt
- amygdaloidal rock
- amygdaloidal structure
- amygdaloidal texture
- amygdule [amygdale]
- amygdules
- amyl xanthate
- Amynodontidae