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 There are 12 thirteen-letter words containing B, I, M, O and 2U| AMBIGUOUSNESS | • ambiguousness n. The state or quality of being ambiguous; ambiguity. • AMBIGUOUSNESS n. the state of being ambiguous.
 |  | BIOACCUMULATE | • bioaccumulate v. (Often of a toxin) To accumulate in a biological system over time. • BIOACCUMULATE v. to accumulate in a biological system over time.
 |  | BUMPTIOUSNESS | • bumptiousness n. The state of being bumptious; conceitedness. • BUMPTIOUSNESS n. the state of being bumptious.
 |  | FUNAMBULATION | • funambulation n. The act of walking on ropes; tightrope walking. • FUNAMBULATION n. tightrope-walking.
 |  | MULTILOBULATE | • multilobulate adj. Multilobulated. • MULTILOBULATE adj. having many lobules, also MULTILOBULAR.
 |  | RUMBUSTIOUSLY | • rumbustiously adv. In a boisterous or unruly manner. • RUMBUSTIOUS adv. boisterous, rambunctious, also RUMBUSTICAL.
 |  | SIMARUBACEOUS | • simarubaceous adj. (Botany) Belonging to the family Simaroubaceae of tropical and subtropical trees. • SIMARUBACEOUS adj. belonging to the Simarubaceae, a family of tropical trees related to the Rutaceae, also SIMAROUBACEOUS.
 |  | SUBBITUMINOUS | • subbituminous adj. Partly or imperfectly bituminous. • SUBBITUMINOUS adj. of, relating to, or being coal of lower rank than bituminous coal but higher than lignite.
 |  | UMBELLIFEROUS | • umbelliferous adj. (Botany) Bearing umbels. • umbelliferous adj. (Botany) Pertaining to a member of the family Umbelliferae.
 • UMBELLIFEROUS adj. bearing umbels.
 |  | UMBRACULIFORM | • umbraculiform adj. (Botany) Having the form of anything that serves to shade, such as a treetop or especially an umbrella. • UMBRACULIFORM adj. shaped like an umbrella.
 |  | UNAMBIGUOUSLY | • unambiguously adv. In a manner that is not ambiguous; leaving no doubt; clearly. • UNAMBIGUOUS adv. not ambiguous.
 |  | UNAMBITIOUSLY | • unambitiously adv. In an unambitious manner. • UNAMBITIOUS adv. not ambitious.
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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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