English dictionary
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English noun: Willem de Sitter | |||
| 1. | Willem de Sitter (person) Dutch astronomer who calculated the size of the universe and suggested that it is expanding (1872-1934) | ||
| Synonyms | Sitter | ||
| Instance hypernym | astronomer, stargazer, uranologist | ||
Based on WordNet 3.0 copyright © Princeton University.
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Web design: Orcapia v/Per Bang. English edition: .
2026 onlineordbog.dk