| BIBLIOGRAPHERS | • bibliographers n. Plural of bibliographer. • BIBLIOGRAPHER n. an expert in bibliography.
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| BIOGEOGRAPHERS | • biogeographers n. Plural of biogeographer. • BIOGEOGRAPHER n. a practitioner of biogeography.
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| DAUGHTERBOARDS | • daughterboards n. Plural of daughterboard. • DAUGHTERBOARD n. a small circuit board that can be attached to the motherboard of a computer.
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| GROUNDBREAKERS | • groundbreakers n. Plural of groundbreaker. • GROUNDBREAKER n. one that innovates.
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| GYROSTABILISER | • gyrostabiliser n. (British spelling) alternative form of gyrostabilizer. • GYROSTABILISER n. a gyroscopic device for countering the roll of a ship, etc., also GYROSTABILIZER.
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| GYROSTABILIZER | • gyrostabilizer n. A device for stabilizing using a gyroscope. • gyro-stabilizer n. Alternative spelling of gyrostabilizer.
 • GYROSTABILIZER n. a gyroscopic device for countering the roll of a ship, etc., also GYROSTABILISER.
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| IRRECOGNISABLE | • irrecognisable adj. Alternative spelling of irrecognizable. • IRRECOGNISABLE adj. unrecognizable, also IRRECOGNIZABLE.
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| MEGAHERBIVORES | • megaherbivores n. Plural of megaherbivore. • MEGAHERBIVORE n. a large plant-eater.
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| OBSTREPERATING | • obstreperating v. Present participle of obstreperate. • OBSTREPERATE v. (Sterne) to make an unruly noise.
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| OVERBREATHINGS | • overbreathings n. Plural of overbreathing. • OVERBREATHING n. hyperventilation.
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| REBROADCASTING | • rebroadcasting v. Present participle of rebroadcast. • REBROADCAST v. to broadcast again (a radio or television program being simultaneously received from another source).
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| ROLLERBLADINGS | • ROLLERBLADING n. the sport of skating on rollerblades. | 
| STOCKBROKERAGE | • stockbrokerage n. Stockbroking. • STOCKBROKERAGE n. the activities of a stockbroker.
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| THOROUGHBRACES | • thoroughbraces n. Plural of thoroughbrace. • THOROUGHBRACE n. any of several leather straps supporting the body of a carriage and serving as springs.
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| VERBIGERATIONS | • verbigerations n. Plural of verbigeration. • VERBIGERATION n. the obsessive repetition of stereotyped phrases.
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| WATERBOARDINGS | • waterboardings n. Plural of waterboarding. • WATERBOARDING n. a form of torture in which the victim is immobilized and has water poured on his or her face, producing a severe gag reflex, to simulate drowning.
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