WordNet: geological period, period

a unit of geological time during which a system of rocks formed; "ganoid fishes swarmed during the earlier geological periods"

• hypernym geologic time, geological time

• hyponym glacial epoch, glacial period, ice age

• part holonym era, geological era

geological period

• (suomi) geologinen kausi (synonyymi)

period

• (suomi) kausi (synonyymi)