diphenhydramine en · NOUN
Pronunciation
- /ˌdʌɪ.fɛnˈhʌɪ.dɹəm.iːn/ (Received-Pronunciation)
- (General-American) audio
- /ˌdaɪˌfɛnˈhaɪ.dɹəˌmiːn/ (General-American)
Etymology
Etymology tree Proto-Indo-European *dwóh₁ Proto-Indo-European *dwi- Proto-Hellenic *dwi- Ancient Greek δῐ- (dĭ-)bor. Latin di-bor. English di- Proto-Indo-European *bʰeh₂- Proto-Indo-European *-né- Proto-Indo-European *-yéti Proto-Indo-European *bʰh₂nyéti Proto-Hellenic *pʰáňňō Ancient Greek φαίνω (phaínō)der. French phéno- Proto-Indo-European *swel-der.? Ancient Greek ῡ̔́λη (hū́lē)der. French -yle French phénylebor. English phenyl English diphen(yl) English (benz)hydr(yl) Egyptian jmnbor. Ancient Greek Ᾰ̓́μμων (Ắmmōn)bor. Latin Ammōn Latin ammoniacusder. English ammonia Proto-Indo-European *-nós Proto-Indo-European *-iHnos Proto-Italic *-īnos Latin -īnusder. Old French -inbor. Middle English -in English -ine English amine English -amine English diphenhydramine From diphen(yl) + (benz)hydr(yl) + -amine.
Meanings
-
(countable, uncountable) An antihistamine and anticholinergic drug that blocks the effect of histamine at H₁ receptor sites, relieving allergy symptoms. It also reduces smooth muscle contraction, increases heart rate, and sedates the user by blocking muscarinic acetylcholine receptors (mAChRs).
Diphenhydramine is a convenient and cheap antihistamine for use, but there are other drugs that do not make the user tired.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| diphenhydramines | Number=Plur | lexicographic |
Synonyms
Translations (2)
cmn 苯海拉明 (antihistamine and sedative drug) · cs difenhydramin (antihistamine and sedative drug)