a combining form with the meanings “blood clot,” “coagulation,” “thrombin,” used in the formation of compound words: thrombocyte.
Also especially before a vowel, thromb-.

Origin of thrombo-

< Greek, combining form of thrómbos clot, lump Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for thrombo-


sometimes before a vowel thromb-

combining form

indicating a blood clotthromboembolism

Word Origin for thrombo-

from Greek thrombos lump, clot
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

Word Origin and History for thrombo-


word-forming element meaning "blood clot," from comb. form Greek thrombos "clot of blood" (see thrombus).

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for thrombo-



Blood clot; blood clotting:thromboplastin.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.