Lexic.us

Definition of Devonian

1. Noun. From 405 million to 345 million years ago; preponderance of fishes and appearance of amphibians and ammonites.

Definition of Devonian

1. a. Of or pertaining to Devon or Devonshire in England; as, the Devonian rocks, period, or system.

2. n. The Devonian age or formation.

Definition of Devonian

1. Adjective. (geology) of a geologic period within the Paleozoic era; comprises lower, middle and upper epochs from about 415 to 360 million years ago ¹

2. Adjective. (chiefly dated) Of or pertaining to the English region of Devon. ¹

3. Noun. (chiefly dated) A native or inhabitant of the English region of Devon. ¹

4. Proper noun. (geology) the Devonian period ¹

¹ Source: wiktionary.com

Definition of Devonian

1. of or pertaining to a certain geologic time period [adj]

Medical Definition of Devonian

1. Of or pertaining to Devon or Devonshire in England; as, the Devonian rocks, period, or system. Devonian age, the age next older than the Carboniferous and later than the Silurian; called also the Age of fishes. The various strata of this age compose the Devonian formation or system, and include the old red sandstone of Great Britain. They contain, besides plants and numerous invertebrates, the bony portions of many large and remarkable fishes of extinct groups. See the Diagram under Geology. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Devonian

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