precambrian eon

Noun precambrian eon has 1 sense

• precambrian eon(n = noun.time) precambrian, precambrian aeon, precambrian period - the eon following the Hadean time and preceding the Phanerozoic eon; from about 3,800 million years ago until 544 million years ago;
has parts: proterozoic, proterozoic aeon, proterozoic eon, archaeozoic, archaeozoic aeon, archean, archean aeon, archean eon, archeozoic, archeozoic eon
is a kind of aeon, eon