This shows grade level based on the word's complexity.
heroin
[ her-oh-in ]
/ ˈhɛr oʊ ɪn /
Save This Word!
This shows grade level based on the word's complexity.
noun Pharmacology.
a white, crystalline, narcotic powder, C21H23NO5, derived from morphine, formerly used as an analgesic and sedative: manufacture and importation of heroin are now controlled by federal law in the U.S. because of the danger of addiction.
QUIZ
TAKE JOY IN ACING THIS QUIZ ON “PRIDE” SYNONYMS
Hold your head up high as you embark on this quiz that explores some of the synonyms and meanings of “pride.”
Question 1 of 7
What does "dignity" mean?
Also called diacetylmorphine, diamorphine.
Origin of heroin
WORDS THAT MAY BE CONFUSED WITH heroin
heroin , heroineWords nearby heroin
heroic quatrain, heroics, heroic stanza, heroic tenor, heroic verse, heroin, heroin chic, heroine, heroinism, heroism, heroize
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
How to use heroin in a sentence
British Dictionary definitions for heroin
heroin
/ (ˈhɛrəʊɪn) /
noun
a white odourless bitter-tasting crystalline powder related to morphine: a highly addictive narcotic. Formula: C 21 H 23 NO 5Technical names: diamorphine, diacetylmorphine
Word Origin for heroin
C19: coined in German as a trademark, probably from hero, referring to its aggrandizing effect on the personality
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
Medical definitions for heroin
heroin
[ hĕr′ō-ĭn ]
n.
A white, bitter, crystalline compound that is derived from morphine and is a highly addictive narcotic.diacetylmorphine
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Scientific definitions for heroin
heroin
[ hĕr′ō-ĭn ]
A white, odorless, bitter crystalline compound, C17H17NO(C2H3O2)2, that is derived from morphine and is a highly addictive narcotic.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.