Daily Almanac for
Nov 30, 2009
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Si•lu•ri•an



Pronunciation: (si-loor'ē-un, sī-), [key]
—adj.
1. of or pertaining to the Silures or their country.
2. Geol.noting or pertaining to a period of the Paleozoic Era, occurring from 425 to 405 million years ago, notable for the advent of air-breathing animals and terrestrial plants. See table under geologic time.

—n.
Geol.the Silurian Period or System of rocks.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

Siluressilurid
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