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suppress

[suh-pres]
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verb (used with object)
  1. to put an end to the activities of (a person, body of persons, etc.): to suppress the Communist and certain left-leaning parties.
  2. to do away with by or as by authority; abolish; stop (a practice, custom, etc.).
  3. to keep in or repress (a feeling, smile, groan, etc.).
  4. to withhold from disclosure or publication (truth, evidence, a book, names, etc.).
  5. to stop or arrest (a flow, hemorrhage, cough, etc.).
  6. to vanquish or subdue (a revolt, rebellion, etc.); quell; crush.
  7. Electricity. to reduce or eliminate (an irregular or undesired oscillation or frequency) in a circuit.
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Origin of suppress

1375–1425; late Middle English suppressen < Latin suppressus (past participle of supprimere to press down), equivalent to sup- sup- + pressus (see press1)
Related formssup·pressed·ly [suh-prest-lee, -pres-id-] /səˈprɛst li, -ˈprɛs ɪd-/, adverbsup·press·i·ble, adjectivesup·pres·sive, adjectivesup·pres·sive·ly, adverbsup·pres·sor, sup·press·er, nounnon·sup·pressed, adjectivenon·sup·pres·sive, adjectivenon·sup·pres·sive·ly, adverbnon·sup·pres·sive·ness, nounpre·sup·press, verb (used with object)qua·si-sup·pressed, adjectivere·sup·press, verb (used with object)self-sup·press·ing, adjectiveself-sup·pres·sive, adjectiveun·sup·pressed, adjectiveun·sup·press·i·ble, adjectiveun·sup·pres·sive, adjectivewell-sup·pressed, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for suppressor

Historical Examples


British Dictionary definitions for suppressor

suppressor

noun
  1. a person or thing that suppresses
  2. a device fitted to an electrical appliance to suppress unwanted electrical interference to audiovisual signals
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suppress

verb (tr)
  1. to put an end to; prohibit
  2. to hold in check; restrainI was obliged to suppress a smile
  3. to withhold from circulation or publicationto suppress seditious pamphlets
  4. to stop the activities of; crushto suppress a rebellion
  5. electronics
    1. to reduce or eliminate (unwanted oscillations) in a circuit
    2. to eliminate (a particular frequency or group of frequencies) in a signal
  6. psychiatry
    1. to resist consciously (an idea or a desire entering one's mind)
    2. to exercise self-control by preventing the expression of (certain desires)Compare repress (def. 3)
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Derived Formssuppresser, nounsuppressible, adjective

Word Origin

C14: from Latin suppressus held down, from supprimere to restrain, from sub- down + premere to press
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for suppressor

suppress

v.

late 14c., "to put down by force or authority," from Latin suppressus, past participle of supprimere "press down, stop, check, stifle," from sub "down, under" (see sub-) + premere "push against" (see press (v.1)). Sense of "prevent or prohibit the circulation of" is from 1550s. Related: Suppressed; suppressing.

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Online Etymology Dictionary, © 2010 Douglas Harper

suppressor in Medicine

suppress

(sə-prĕs)
v.
  1. To curtail or inhibit the activity of something, such as the immune system.
  2. To deliberately exclude unacceptable desires or thoughts from the mind.
  3. To reduce the incidence or severity of a condition or symptom, such as a hemorrhage.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

suppressor in Science

suppressor

[sə-prĕsər]
  1. A mutant gene that suppresses the phenotypic expression of another usually mutant gene.
  2. A device, such as a resistor or grid, that is used in an electrical or electronic system to reduce unwanted currents.♦ A suppressor grid in a vacuum tube such as a pentode is designed to prevent the secondary emission of electrons from the plate. When electrons emitted by the tube's cathode strike the plate, their energies can be high enough to cause secondary emission of low-energy electrons from the plate, and these electrons can drift away into other positively charged electrodes in the tube (like the screen or the control grid), drawing current from the plate. A negatively charged suppressor grid near the plate repels these low-energy electrons and pushes them back toward the plate so that no current is lost, increasing the efficiency of the tube.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.