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depressant
depressant any one of various substances that diminish functional activity, usually by depressing the nervous system . Barbiturates , sedatives , alcohol, and meprobamate are all depressants. Depressants have various modes of action and effects. Some are primarily used medically to relieve emotion stress, anxiety, and tension; others induce sleep, and still others are used to relieve pain. Depressants also reduce the rate and force of contraction of the heart and are used in the treatment of some forms of heart disease . Many depressants can induce psychological dependence and addiction (see drug addiction and drug abuse ). Typically, overdosage results in confusion, coma, and convulsions. In many cases, the effects of one depressant are intensified if another depressant is taken at the same time, e.g., if barbiturates are taken with alcohol. Because of their potential for abuse, there are now strict regulations regarding the dispensing of many depressant drugs. |
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Cite this article
"depressant." The Columbia Encyclopedia, 6th ed.. 2008. Encyclopedia.com. 13 Feb. 2012 <http://www.encyclopedia.com>. "depressant." The Columbia Encyclopedia, 6th ed.. 2008. Encyclopedia.com. (February 13, 2012). http://www.encyclopedia.com/doc/1E1-depressa.html "depressant." The Columbia Encyclopedia, 6th ed.. 2008. Retrieved February 13, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-depressa.html |
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depressant
de·pres·sant / diˈpresənt/ • adj. (chiefly of a drug) reducing functional or nervous activity. • n. a depressant drug. ∎ an influence that depresses economic or other activity: higher taxation is a depressant. |
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Cite this article
"depressant." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. 13 Feb. 2012 <http://www.encyclopedia.com>. "depressant." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. (February 13, 2012). http://www.encyclopedia.com/doc/1O999-depressant.html "depressant." The Oxford Pocket Dictionary of Current English. 2009. Retrieved February 13, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O999-depressant.html |
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depressant
depressant (di-pres-ănt) n. an agent that reduces the normal activity of any body system or function. Drugs such as general anaesthetics, barbiturates, and opioids are depressants of the central nervous system and respiration.
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Cite this article
"depressant." A Dictionary of Nursing. 2008. Encyclopedia.com. 13 Feb. 2012 <http://www.encyclopedia.com>. "depressant." A Dictionary of Nursing. 2008. Encyclopedia.com. (February 13, 2012). http://www.encyclopedia.com/doc/1O62-depressant.html "depressant." A Dictionary of Nursing. 2008. Retrieved February 13, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O62-depressant.html |
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depressant
depressant
•abeyant, mayn't
•ambient, circumambient
•gradient, irradiant, radiant
•expedient, ingredient, mediant, obedient
•valiant • salient • resilient • emollient
•defoliant • ebullient • suppliant
•convenient, intervenient, lenient, prevenient
•sapient
•impercipient, incipient, percipient, recipient
•recreant • variant • miscreant
•Orient • nutrient
•esurient, luxuriant, parturient, prurient
•nescient, prescient
•omniscient • insouciant • renunciant
•officiant • negotiant • deviant
•subservient • transient
•affiant, Bryant, client, compliant, defiant, giant, pliant, reliant
•buoyant, clairvoyant, flamboyant
•fluent, pursuant, truant
•affluent • effluent • mellifluent
•confluent • circumfluent • congruent
•issuant • continuant • constituent
•lambent • absorbent
•incumbent, recumbent
•couchant • merchant • hadn't
•ardent, guardant, regardant
•pedant
•appendant, ascendant, attendant, codependent, defendant, descendant, descendent, intendant, interdependent, pendant, pendent, splendent, superintendent, transcendent
•antecedent, decedent, needn't, precedent
•didn't • diffident • confident
•accident • dissident
•coincident, incident
•oxidant • evident
•improvident, provident
•president, resident
•strident, trident
•co-respondent, correspondent, despondent, fondant, respondent
•accordant, concordant, discordant, mordant, mordent
•rodent
•imprudent, jurisprudent, prudent, student
•couldn't, shouldn't, wouldn't
•impudent
•abundant, redundant
•decadent • verdant • infant • elephant
•triumphant • sycophant • elegant
•fumigant • congregant • litigant
•termagant • arrogant • extravagant
•pageant
•cotangent, plangent, tangent
•argent, Sargent, sergeant
•agent • newsagent • regent
•astringent, contingent, stringent
•indigent • intelligent • negligent
•diligent • intransigent • exigent
•cogent
•effulgent, fulgent, indulgent
•pungent
•convergent, detergent, divergent, emergent, insurgent, resurgent, urgent
•bacchant • peccant • vacant • piquant
•predicant • mendicant • significant
•applicant • supplicant • communicant
•lubricant • desiccant • intoxicant
•gallant, talent
•appellant, propellant, propellent, repellent, water-repellent
•resemblant
•assailant, inhalant
•sealant • sibilant • jubilant
•flagellant • vigilant • pestilent
•silent
•Solent, volant
•coolant • virulent • purulent
•ambulant, somnambulant
•coagulant • crapulent • flatulent
•feculent • esculent • petulant
•stimulant • flocculent • opulent
•postulant • fraudulent • corpulent
•undulant
•succulent, truculent
•turbulent • violent • redolent
•indolent • somnolent • excellent
•insolent • nonchalant
•benevolent, malevolent, prevalent
•ambivalent, equivalent
•garment • clement • segment
•claimant, clamant, payment, raiment
•ailment
•figment, pigment
•fitment • aliment • element
•oddment
•dormant, informant
•moment • adamant • stagnant
•lieutenant, pennant, subtenant, tenant
•pregnant, regnant
•remnant • complainant
•benignant, indignant, malignant
•recombinant • contaminant
•eminent
•discriminant, imminent
•dominant, prominent
•illuminant, ruminant
•determinant • abstinent
•continent, subcontinent
•appurtenant, impertinent, pertinent
•revenant
•component, deponent, exponent, opponent, proponent
•oppugnant, repugnant
•immanent
•impermanent, permanent
•dissonant • consonant • alternant
•covenant • resonant • rampant
•discrepant • flippant • participant
•occupant • serpent
•apparent, arrant, transparent
•Arendt
•aberrant, deterrent, errant, inherent, knight-errant
•entrant
•declarant, parent
•grandparent • step-parent
•godparent
•flagrant, fragrant, vagrant
•registrant • celebrant • emigrant
•immigrant • ministrant • aspirant
•antiperspirant • recalcitrant
•integrant • tyrant • vibrant • hydrant
•migrant, transmigrant
•abhorrent, torrent, warrant
•quadrant • figurant • obscurant
•blackcurrant, concurrent, currant, current, occurrent, redcurrant
•white currant • cross-current
•undercurrent
•adherent, coherent, sederunt
•exuberant, protuberant
•reverberant • denaturant
•preponderant • deodorant
•different, vociferant
•belligerent, refrigerant
•accelerant • tolerant • cormorant
•itinerant • ignorant • cooperant
•expectorant • adulterant
•irreverent, reverent
•nascent, passant
•absent
•accent, relaxant
•acquiescent, adolescent, albescent, Besant, coalescent, confessant, convalescent, crescent, depressant, effervescent, erubescent, evanescent, excrescent, flavescent, fluorescent, immunosuppressant, incandescent, incessant, iridescent, juvenescent, lactescent, liquescent, luminescent, nigrescent, obsolescent, opalescent, pearlescent, phosphorescent, pubescent, putrescent, quiescent, suppressant, tumescent, turgescent, virescent, viridescent
•adjacent, complacent, obeisant
•decent, recent
•impuissant, reminiscent
•Vincent • puissant
•beneficent, maleficent
•magnificent, munificent
•Millicent • concupiscent • reticent
•docent
•lucent, translucent
•discussant, mustn't
•innocent
•conversant, versant
•consentient, sentient, trenchant
•impatient, patient
•ancient • outpatient
•coefficient, deficient, efficient, proficient, sufficient
•quotient • patent
•interactant, reactant
•disinfectant, expectant, protectant
•repentant • acceptant
•contestant, decongestant
•sextant
•blatant, latent
•intermittent
•assistant, coexistent, consistent, distant, equidistant, existent, insistent, persistent, resistant, subsistent, water-resistant
•instant
•cohabitant, habitant
•exorbitant • militant • concomitant
•impenitent, penitent
•palpitant • crepitant • precipitant
•competent, omnicompetent
•irritant • incapacitant • Protestant
•hesitant • visitant • mightn't • octant
•remontant • constant
•important, oughtn't
•accountant • potent
•mutant, pollutant
•adjutant • executant • disputant
•reluctant
•consultant, exultant, resultant
•combatant • omnipotent • impotent
•inadvertent
•Havant, haven't, savant, savante
•advent
•irrelevant, relevant
•pursuivant • solvent • convent
•adjuvant
•fervent, observant, servant
•manservant • maidservant
•frequent, sequent
•delinquent • consequent
•subsequent • unguent • eloquent
•grandiloquent, magniloquent
•brilliant • poignant • hasn't
•bezant, omnipresent, peasant, pheasant, pleasant, present
•complaisant • malfeasant • isn't
•cognizant • wasn't • recusant
•doesn't
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Cite this article
"depressant." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. 13 Feb. 2012 <http://www.encyclopedia.com>. "depressant." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. (February 13, 2012). http://www.encyclopedia.com/doc/1O233-depressant.html "depressant." Oxford Dictionary of Rhymes. 2007. Retrieved February 13, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O233-depressant.html |
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