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Word: paleozoic
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Meaning:
Adjective:
- geology Of a geologic era within the Phanerozoic eon and comprises the Cambrian, Ordovician, Silurian, Devonian, Carboniferous and Permian periods from about 542 to 250 million years ago, from the age of trilobites to that of reptiles.
Source: Wiktionary
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Proper noun:
- geology The Paleozoic era.
Source: Wiktionary
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