List of 15-letter words containing ••••••

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There are 16 fifteen-letter words containing A, B, H, I, O and 2R

AUTOBIOGRAPHERS	• autobiographers n. Plural of autobiographer. • AUTOBIOGRAPHER n. one who writes autobiographies.
BIOSTRATIGRAPHY	• biostratigraphy n. (Biology, geology) The study of the stratigraphic distribution of fossils. • BIOSTRATIGRAPHY n. the determination of age, etc., of sedimentary strata from fossils which they contain.
BRACHIOSAURUSES	• brachiosauruses n. Plural of brachiosaurus. • BRACHIOSAURUS n. any member of a genus of huge lizard-hipped plant-eating dinosaurs.
BRACHISTOCHRONE	• brachistochrone n. (Mathematics) A cycloid; the curve of fastest descent between two points. • BRACHISTOCHRONE n. the curve along which a particle acted on by a force (e.g. gravity) will pass in the shortest time from one given point to another.
BRONCHODILATORS	• bronchodilators n. Plural of bronchodilator. • BRONCHODILATOR n. a drug that relaxes bronchial muscle resulting in expansion of the bronchial air passages.
BRONCHOGRAPHIES	• BRONCHOGRAPHY n. radiological examination of the trachea or bronchi.
CYBERCHONDRIACS	• cyberchondriacs n. Plural of cyberchondriac. • CYBERCHONDRIAC n. one suffering from CYBERCHONDRIA.
DORSIBRANCHIATE	• dorsibranchiate adj. (Zoology) Having branchiae along the back; belonging to the Dorsibranchiata. • dorsibranchiate n. (Zoology) Any of the Dorsibranchiata. • DORSIBRANCHIATE adj. having gills on the back.
INTERBEHAVIORAL	• interbehavioral adj. Between behaviors; applied to a naturalistic, non-dualistic form of psychology. • INTERBEHAVIORAL adj. relating to interbehavior.
INTERBEHAVIOURS	• interbehaviours n. Plural of interbehaviour. • INTERBEHAVIOUR n. interaction between multiple individuals, also INTERBEHAVIOR.
MICROBAROGRAPHS	• microbarographs n. Plural of microbarograph. • MICROBAROGRAPH n. an instrument for recording minute changes in atmospheric pressure.
PROBATIONERSHIP	• probationership n. The state of being a probationer; novitiate. • PROBATIONERSHIP n. the state of being a probationer.
THIOBARBITURATE	• thiobarbiturate n. (Medicine) Any compound obtained from a barbiturate by the formal substitution of an oxygen atom by one of sulfur. • THIOBARBITURATE n. a salt of thiobarbituric acid similar in effect to a barbiturate.
TRIBROMOETHANOL	• tribromoethanol n. An anaesthetic now mainly used in laboratory animals. • TRIBROMOETHANOL n. a soluble white crystalline compound with a slight aromatic odour, used as a general anaesthetic.
TRIBROMOMETHANE	• tribromomethane n. (Organic chemistry) bromoform. • TRIBROMOMETHANE n. another name for bromoform, a bromine compound analogous to chloroform.
WEATHERBOARDING	• weatherboarding n. (Architecture) A type of wooden siding in which a house is sided with long, thin, overlapping boards. • WEATHERBOARD v. to fit such a board.

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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English Wiktionary: 228 words
Scrabble in French: 16 words
Scrabble in Spanish: 45 words
Scrabble in Italian: 188 words
Scrabble in German: no word
Scrabble in Romanian: 46 words

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