Try Our Apps


Supposedly vs. Supposably


[thee-buh-een, thi-bey-een, -in] /ˈθi bəˌin, θɪˈbeɪ in, -ɪn/
noun, Chemistry
a white, crystalline, slightly water-soluble, poisonous alkaloid, C 19 H 21 NO 3 , present in opium in small quantities, but having a strychninelike rather than a narcotic effect.
Origin of thebaine
1890-95; < New Latin thēba(ia) opium of Thebes, Egypt (alteration of Latin Thēbaea, feminine of Thēbaeus Theban) + -ine2 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
British Dictionary definitions for thebaine


/ˈθiːbəˌiːn; θɪˈbeɪiːn; -aɪn/
a poisonous white crystalline alkaloid, found in opium but without opioid actions. Formula: C19H21NO3 Also called paramorphine
Word Origin
C19: from New Latin thebaia opium of Thebes (with reference to Egypt as a chief source of opium) + -ine²
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
Cite This Source
thebaine in Medicine

thebaine the·ba·ine (thē'bə-ēn', thĭ-bā'ĭn)
A poisonous crystalline alkaloid obtained from opium. Also called paramorphine.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source

Word of the Day

Difficulty index for thebaine

Few English speakers likely know this word

Word Value for thebaine

Scrabble Words With Friends

Nearby words for thebaine