Precambrian 
Precambrian
Definition
Pre·cam·brian (prē kam′brē ən)
adjective
designating or of the division of geologic time covering all the time before the Cambrian Period, equivalent to the Archean Eon and the Proterozoic Eon
the Precambrian
the Precambrian time or its rocks
Browse dictionary entries near Precambrian
- ‹ prec
- ‹ prebiotic
- ‹ prebiological
- ‹ prebendary
- ‹ prebend
- ‹ preaxial
- ‹ prearranged trading
- ‹ prearrange
- ‹ preapprove
- ‹ preamplifier
- precancel ›
- precancerous ›
- precarious ›
- precast concrete ›
- precatory ›
- precaution ›
- precautionary ›
- precava ›
- precede ›
- precedence ›
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