exotoxin [ek-soh-tok-sin] WORD ORIGIN noun Biochemistry. a solubleexcreted by a microorganism.
Compare. Origin of exotoxin First recorded in 1915–20; + Related formsex·o·tox·ic, adjective Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019 British Dictionary definitions for exotoxin exotoxin noun a toxin produced by a microorganism and secreted into the surrounding medium Derived Formsexotoxic, adjective 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 exotoxin in Medicine exotoxin [ĕk′sō-tŏk′sĭn] n. A toxin secreted by a microorganism and released into the environment in which it grows.extracellular toxin The American Heritage® Stedman’s Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.