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 List of 13-letter words containing •••••Click to add a seventh letter
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 There are 5 thirteen-letter words containing B, C 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.
 |  | CORROBORATORS | • corroborators n. Plural of corroborator. • CORROBORATOR n. one who corroborates.
 |  | CORROBORATORY | • corroboratory adj. Serving to corroborate or strengthen. • CORROBORATORY adj. serving to corroborate.
 |  | PHOTOBIOLOGIC | • photobiologic adj. Synonym of photobiological. • PHOTOBIOLOGIC adj. relating to photobiology, also PHOTOBIOLOGICAL.
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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.
 
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