| QUADRUPLE | • quadruple adj. Being four times as long, as big or as many of something. • quadruple v. (Transitive) To multiply by four.
 • quadruple v. (Intransitive) To increase by a factor of four.
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| QUADRUPLED | • quadrupled v. Simple past tense and past participle of quadruple. • QUADRUPLE v. to increase fourfold.
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| QUADRUPLES | • quadruples v. Third-person singular simple present indicative form of quadruple. • quadruples n. Plural of quadruple.
 • QUADRUPLE v. to increase fourfold.
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| QUADRUPLET | • quadruplet n. A set of four, particularly. • quadruplet n. One of a group of four, particularly one of four babies born from the same mother during the same birth.
 • quadruplet n. A cycle for carrying four riders, arranged so that all the riders can assist in the propulsion.
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| QUADRUPLEX | • quadruplex adj. Having four components. • quadruplex adj. Of or relating to a system in telegraphy by which four messages (two in each direction) can be sent…
 • quadruplex adj. Of or relating to an early videotape format with four magnetic record/reproduce heads mounted on a headwheel…
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| QUADRUPOLE | • quadrupole n. (Physics) A distribution of either electric charge or magnetization equivalent to two dipoles that point… • quadrupole n. (Physics) A magnet with two north poles and two south poles, used to focus a beam of particles.
 • QUADRUPOLE n. a system composed of two dipoles of equal but oppositely directed moment.
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| QUADRUPEDAL | • quadrupedal adj. Walking on four feet. • QUADRUPEDAL adj. having four feet.
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| QUADRUPLETS | • quadruplets n. Plural of quadruplet. • QUADRUPLET n. a combination of four of a kind.
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| QUADRUPLIES | • QUADRUPLY n. (Scots) a reply to a triply. | 
| QUADRUPOLES | • quadrupoles n. Plural of quadrupole. • QUADRUPOLE n. a system composed of two dipoles of equal but oppositely directed moment.
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| QUADRUPLEXED | • quadruplexed adj. Having a quadruplex arrangement. • QUADRUPLEX v. to make quadruplex.
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| QUADRUPLEXES | • quadruplexes n. Plural of quadruplex. • QUADRUPLEX v. to make quadruplex.
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| QUADRUPLEXING | • quadruplexing n. The transmission of four separate messages on a single cable. • QUADRUPLEX v. to make quadruplex.
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| QUADRUPLICATE | • quadruplicate adj. Having four parts. • quadruplicate adj. Four times over, multiplied by four.
 • quadruplicate n. In quadruplicate: four times over, in four copies.
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| QUADRUPLICATED | • quadruplicated v. Simple past tense and past participle of quadruplicate. • quadruplicated adj. Replicated four times.
 • QUADRUPLICATE v. to make quadruple or fourfold.
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| QUADRUPLICATES | • quadruplicates n. Plural of quadruplicate. • quadruplicates v. Third-person singular simple present indicative form of quadruplicate.
 • QUADRUPLICATE v. to make quadruple or fourfold.
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| UNDERQUALIFIED | • underqualified adj. Lacking the suitable qualifications for a particular job. • UNDERQUALIFIED adj. insufficiently qualified.
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| QUADRUPLICITIES | • quadruplicities n. Plural of quadruplicity. • QUADRUPLICITY n. the state of being quadruple.
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