Ordovician

Definition of Ordovician

Or`do`vi´cian
a.1.(Geol.) Of or pertaining to a division of the Silurian formation, corresponding in general to the Lower Silurian of most authors, exclusive of the Cambrian.

Related Words

geological period, Ordovician period, Paleozoic, Paleozoic era, period
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Ordinance
Ordinand
Ordinant
Ordinarily
Ordinary
Ordinary of the Mass
Ordinary ray
Ordinary seaman
Ordinaryship
Ordinate
Ordinate figure
Ordinately
Ordination
Ordinative
Ordinator
Ordnance
Ordnance survey
Ordonnance
Ordonnant
Ordovian
-Ordovician-
Ordure
Ordurous
Ore
Ore hearth
Oread
Oreades
Orectic
Oregon grape
Oregonian
Oreide
oreo
Oreodon
Oreodont
Oreographic
Oreography
Oreopteris
Oreortyx
Oreoselin
Oreosoma
Oreweed
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