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| De·vo·ni·an [ də vṓnee ən ] |
noun |
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geologic period: the geologic period, 410 million to 360 million years ago, during which amphibians first appeared and fish became abundant
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adjective |
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belonging to geologic period: relating to the Devonian period of geologic time
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| [Early 17th century. < medieval Latin Devonia< Old English Defenascīr "Devonshire," former name of the county of Devon, England] |
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