	Site Map \| FAQ in Daily Almanac for Feb 15, 2012
Skip Navigation Home Black History Month Atlas Encyclopedia Dictionary Thesaurus Features Quizzes Timelines Countries

| Share

Dictionary

Or•do•vi•cian

Pronunciation: (ôr"du-vish'un), [key] Geol.

—adj.
noting or pertaining to a geologic period of the Paleozoic Era, from 500 million to 425 million years ago, notable for the advent of fish. See table at geologic time.

—n.
the Ordovician Period or System.

ordonnance

ordure

See also:

Ordovician (Thesaurus)

Dictionary

Or•do•vi•cian

Related Content