noting or pertaining to the earliest era of earth history, ending million years ago, during which the earth's crust formed and life first appeared in the seas. The period of geologic time between Hadean Time and the Phanerozoic Eon, from about billion to million years.
The Precambrian is the earliest part of Earth's history, set before the current Phanerozoic Eon. The Precambrian is so named because it preceded the Cambrian, the first period.
The name means: "before the Cambrian period. The Precambrian Era comprises all of geologic time prior to million years ago. Any rocks that do form from cooling lavas are quickly buried under new lava flows or blasted to bits by yet.
Define Precambrian era. Precambrian era synonyms, Precambrian era pronunciation, Precambrian era translation, English dictionary definition of Precambrian.
Precambrian Era Definition - Precambrian Era is the period that started about billion years ago and ended Definition - What does Precambrian Era mean?.
Precambrian definition is - of, relating to, or being the earliest era of and is equivalent to the Archean and Proterozoic eons — see Geologic Time Table of the audience describes your speech as bombastic, does that person mean it is.