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 There are 2 thirteen-letter words containing B, C, N and 4O| CHRONOBIOLOGY | • chronobiology n. (Biology) The study of the effects of time on biological systems, especially the effects of periodicity. • CHRONOBIOLOGY n. the study of biological rhythms.
 |  | CORROBORATION | • corroboration n. The act of corroborating, strengthening, or confirming; addition of strength; confirmation. • corroboration n. That which corroborates.
 • CORROBORATION n. corroboration.
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 Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.Definitions are short excerpt from the WikWik.org and 1Word.ws.
 
 See this list for:English Wiktionary: 22 wordsScrabble in French: 3 wordsScrabble in Spanish: 1 wordScrabble in Italian: 9 wordsScrabble in German: no wordScrabble in Romanian: no word
 
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