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Wordswarms From Years Past


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Prebendal
Prebendary
Prebendaryship
Prebendate
Prebendship
prebiologic
prebiological
prebiotic
Prebisch
Preble
Prebronchial
Precalculate
precalculus
Precambrian aeon
Precambrian eon
Precambrian period
Precambrian time
precancel
precancellation
precancerous
Precant
Precarious
Precariously
Precariousness
precast

Precambrian definitions

WordNet (r) 3.0 (2005)

n
1: the eon following the Hadean time and preceding the Phanerozoic eon; from about 3,800 million years ago until 544 million years ago [syn: Precambrian, Precambrian eon, Precambrian aeon, Precambrian period]

Merriam Webster's

adjective Date: 1864 of, relating to, or being the earliest era of geological history or the corresponding system of rocks that is characterized especially by the appearance of single-celled organisms and is equivalent to the Archean and Proterozoic eons see geologic time table Precambrian noun

Oxford Reference Dictionary

adj. & n. Geol. --adj. of or relating to the earliest era of geological time from the formation of the earth to the first forms of life. Usage: Cf. Appendix II. --n. this era.



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