a learned borrowing from Latin meaning “killer,” “act of killing,” used in the formation of compound words: pesticide, homicide.
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Origin of -cide
late Middle English, from Middle French, from Latin -cīda “killer,” -cīdium “act of killing,” derivatives of caedere “to strike, beat, cut down, kill” (in compounds -cīdere )
Words nearby -cide
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
British Dictionary definitions for -cide
n combining form
indicating a person or thing that killsinsecticide
indicating a killing; murderhomicide
Derived forms of -cide-cidal, adj combining form
Word Origin for -cide
from Latin -cīda (agent), -cīdium (act), from caedere to kill
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
Medical definitions for -cide
Act of killing:suicide.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Scientific definitions for -cide
A suffix that means a killer of. It is used to form the names of chemicals that kill a specified organism, such as pesticide, a chemical that kills pests.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.