单词	melatonin
释义	melatoninmel‧a‧to‧nin /ˌmeləˈtəʊnɪn $ -ˈtoʊ-/ noun [uncountable] Word Origin WORD ORIGINmelatonin Origin: 1900-2000 Greek melas ‘black’ + English serotonin Examples EXAMPLES FROM THE CORPUS A synthetic form of melatonin can be bought over-the-counter at health food stores and many pharmacies. Daily injections of melatonin given at 3.30 each afternoon, entrained the rats to a 24 hour cycle. Perhaps melatonin would help him get a little rest. Starlings, which are active during the day, lock on to melatonin when it coincides with the end of their activity. The rat does not immediately adjust its daily rhythm to the melatonin. The results raise an interesting problem for people studying other effects of melatonin. There may be uncertainties surrounding melatonin, but it is clearly the dose of the moment. When the sun goes down, the eyes cue the gland to start pumping melatonin. word sets WORD SETS► Drugs/Medicines anabolic steroid, nounanaesthetic, nounantacid, nounantibiotic, nounantidepressant, nounantidote, nounantihistamine, nounanti-inflammatory, adjectiveantitoxin, nounaspirin, nounbalm, nounbalsam, nounbandage, nounbandage, verbBand-Aid, nounbarbiturate, nounbatch, nounBCG, nounbelladonna, nounbeta-blocker, nounbismuth, nounbooster, nouncaffeine, nouncapsule, nouncastor oil, nounchemotherapy, nounclinical, adjectivecodeine, nouncondom, nouncortisone, nouncough mixture, noundepressant, noundisinfect, verbdisinfectant, noundispensary, noundispense, verbdispensing chemist, noundiuretic, noundosage, noundose, noundose, verbdraught, noundrip, noundrug, noundrug, verbdruggist, noundrugstore, nounear drops, nounemetic, nounemollient, adjectiveEpsom salts, nouneucalyptus, nounexpectorant, nounfluoridate, verbfluoride, nounfolic acid, noungripe water, nounhallucinogen, nounhemlock, nounherbal, adjectiveherbal medicine, nounhypnotic, nounimmunize, verbinfusion, nouninhalant, nouninhaler, nouninject, verbinjection, nouninoculate, verbintravenous, adjectiveiodine, nounlaxative, nounlotion, nounlozenge, nounmagnesia, nounmedicament, nounmedicated, adjectivemedication, nounmedicinal, adjectivemedicine, nounmelatonin, nounmethadone, nounmilk of magnesia, nounmorning-after pill, nounmorphia, nounmorphine, nounnarcotic, nounnarcotic, adjectiveneedle, nounniacin, nounnicotine patch, nounobstetrician, nounointment, nounopiate, nounopium, nounoral contraceptive, nounoverdose, nounover-the-counter, adjectivepack, nounpainkiller, nounparacetamol, nounpastille, nounpatch, nounpatent medicine, nounpenicillin, nounpharmaceutical, adjectivepharmaceuticals, nounpharmacist, nounpharmacology, nounpharmacopoeia, nounpharmacy, nounplacebo, nounprescribe, verbprescription, nounpurgative, nounquinine, nounRDA, nounreaction, nounremedy, nounrubbing alcohol, nounsalve, nounsedation, nounsedative, nounsenna, nounserum, nounside effect, nounsleeping pill, nounspecific, nounsteroid, nounstimulant, nounstrychnine, nounsuppository, nounsurgical spirit, nounsyringe, nountablet, nountake, verbThalidomide, nountherapist, nountincture, nountonic, nountranquillizer, nountruth drug, nounvaccinate, verbvaccine, nounValium, nounVaseline, nounwitch-hazel, noun a hormone that is sometimes used as a drug to help you sleep
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