Definition of Willem De Sitter in English :
Define Willem De Sitter in English
Willem De Sitter meaning in English
Meaning of Willem De Sitter in English
Pronunciation of Willem De Sitter in English
Willem De Sitter pronunciation in English
Pronounce Willem De Sitter in English
Willem De Sitter
see synonyms of willem de sitterNoun
1. sitter, willem de sitter
Dutch astronomer who calculated the size of the universe and suggested that it is expanding (1872-1934)
WordNet Lexical Database for English. Princeton University. 2010.