English dictionary
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English noun: Silurian period | |||
| 1. | Silurian period (time) from 425 million to 405 million years ago; first air-breathing animals | ||
| Synonyms | Silurian | ||
| Instance hypernym | geological period, period | ||
| Part meronym | Paleozoic, Paleozoic era | ||
Based on WordNet 3.0 copyright © Princeton University.
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Web design: Orcapia v/Per Bang. English edition: .
2026 onlineordbog.dk