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 There are 3 thirteen-letter words containing 2B, E, L, O and V| BIOBEHAVIORAL | • biobehavioral adj. Pertaining to the biological causes of behavior. |  | OBSERVABILITY | • observability n. (Uncountable) The state of being observable. • observability n. (Countable) A measure of the extent to which something is observable. • OBSERVABILITY n. the state of being observable. |  | UNOBSERVABLES | • unobservables n. Plural of unobservable. • UNOBSERVABLE n. something that cannot be observed. |  
 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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