| English Dictionary |
SILURIAN
| Pronunciation (US): |  | (GB): | |
Dictionary entry overview: What does Silurian mean?
• SILURIAN (noun)
The noun SILURIAN has 1 sense:
1. from 425 million to 405 million years ago; first air-breathing animals
Familiarity information: SILURIAN used as a noun is very rare.
Dictionary entry details
Sense 1
Meaning:
From 425 million to 405 million years ago; first air-breathing animals
Classified under:
Nouns denoting time and temporal relations
Synonyms:
Silurian; Silurian period
Instance hypernyms:
geological period; period (a unit of geological time during which a system of rocks formed)
Holonyms ("Silurian" is a part of...):
Paleozoic; Paleozoic era (from 544 million to about 230 million years ago)
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