| BIQUADRATE | • biquadrate n. (Mathematics) The fourth power; the square of a square. • biquadrate v. (Transitive, arithmetic) To raise to the fourth power; to determine the result of multiplying by itself three times.
 • BIQUADRATE n. the fourth power.
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| INTERSQUAD | • intersquad adj. Between squads. | 
| QUADRENNIA | • quadrennia n. Plural of quadrennium. • QUADRENNIUM n. (Latin) a period of four years, also QUADRIENNIUM.
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| QUADRICEPS | • quadriceps n. (Anatomy) A muscle having four heads, especially the large extensor at the front of the thigh. • QUADRICEPS n. the great extensor muscle of the knee, divided above into four parts which unite in a single tendon at the knee.
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| QUADRICONE | • quadricone n. (Geometry) A quadric cone. • QUADRICONE n. a quadric cone, or cone having a conic as base.
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| QUADRILLED | • quadrilled v. Simple past tense and past participle of quadrille. • QUADRILLE v. to dance the quadrille.
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| QUADRILLER | • quadriller n. One who dances the quadrille. • QUADRILLER n. one who dances the quadrille.
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| QUADRILLES | • quadrilles n. Plural of quadrille. • QUADRILLE n. (French) a square dance for four couples.
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| QUADRIPOLE | • quadripole n. (Electronics) An electrical circuit that has two pairs of external terminals. • quadripole n. (Physics) four poles disposed in a square fashion.
 • QUADRIPOLE n. a network with two input and two output terminals.
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| QUADRIREME | • quadrireme n. (History, nautical) a galley with four banks of oars, each rowed by two oarsmen. • QUADRIREME n. an ancient ship with four banks of oars.
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| QUADRISECT | • quadrisect v. (Transitive) To divide into four parts. • QUADRISECT v. to divide into four equal parts.
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| QUANDARIES | • quandaries n. Plural of quandary. • QUANDARY n. a state of perplexity.
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| RADIOPAQUE | • radiopaque adj. Impenetrable to X-rays and other radiation. • RADIOPAQUE adj. not allowing passage of X-rays.
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| REACQUIRED | • reacquired v. Simple past tense and past participle of reacquire. • REACQUIRE v. to acquire again.
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| UNQUARRIED | • unquarried adj. Not quarried. • UNQUARRIED adj. not quarried.
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