promethazine

[ proh-meth-uh-zeen, -zin ]
/ proʊˈmɛθ əˌzin, -zɪn /

noun Pharmacology.

a phenothiaxine derivative, C17H20N2S, used for the symptomatic relief of allergies and in the management of motion sickness.

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Origin of promethazine

1950–55; propyl + (di)meth(ylamine) + (phenothi)azine, components of its chemical name
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for promethazine

promethazine
/ (prəʊˈmɛθəˌziːn) /

noun

an antihistamine drug used to treat allergies and to prevent vomiting, esp in motion sickness

Word Origin for promethazine

C20: from pro (pyl) + (di) meth (ylamine) + (phenothi) azine
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