English
Detailed Synonyms for Willem de Sitter in English
Willem de Sitter:
Willem de Sitter [the ~] noun
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the Willem de Sitter
– Dutch astronomer who calculated the size of the universe and suggested that it is expanding (1872-1934) 1the Willem de Sitter; the Sitter– Dutch astronomer who calculated the size of the universe and suggested that it is expanding (1872-1934) 1