noun Immunology, Pharmacology.

a substance that has a toxic effect on certain cells.

Origin of cytotoxin

First recorded in 1900–05; cyto- + toxin
Related formscy·to·tox·ic, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for cytotoxin



any substance that is poisonous to living cells
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

cytotoxin in Medicine




A substance having a specific toxic effect on certain cells.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.