a combining form meaning “cell,” used in the formation of compound words: cytoplasm.
Also cyte-; especially before a vowel, cyt-.

Origin of cyto-

< Greek kyto-, combining form of kýtos container, receptacle, body Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for cyto-


combining form

indicating a cellcytolysis; cytoplasm

Word Origin for cyto-

from Greek kutos vessel, container; related to kuein to contain
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

Medicine definitions for cyto-



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

Science definitions for cyto-


A prefix meaning “cell,” as in the word cytoplasm.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.