English Dictionary - With Multi-Lingual Search

English
wikipedia

Adjective
en-adj

1. geology Of a geologic period within the Paleozoic era; comprises lower, middle and upper epochs from about 488 to 443 million years ago.

Proper noun
en-proper noun

1. geology The Ordovician period.

See also
Wiktionary appendix:Geologic timescale

fa:Ordovician
zh:Ordovician

• 2007-11-21 00:11 - Interwicket - iwiki +fa

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