[ het-uh-roh ]
/ ˈhɛt əˌroʊ /
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Chemistry. of or relating to an atom other than carbon, particularly in a cyclic compound.
Informal. heterosexual.

noun, plural het·er·os.

Informal. a heterosexual person.



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“Evoke” and “invoke” both derive from the same Latin root “vocāre.”

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Origin of hetero

1930–35 for def. 2; (in def. 1) by shortening of heteroatom; (in def. 2) by shortening of heterosexual; see -o

Definition for hetero (2 of 2)


a combining form meaning “different,” “other,” used in the formation of compound words: heterocyclic.
Also especially before a vowel, heter-.

Origin of hetero-

Combining form of Greek héteros the other of two, other, different
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use hetero in a sentence

British Dictionary definitions for hetero (1 of 2)

/ (ˈhɛtərəʊ) informal /

noun, adjective plural -os

short for heterosexual

British Dictionary definitions for hetero (2 of 2)


combining form

other, another, or differentheterodyne; heterophony; heterosexual Compare homo-

Word Origin for hetero-

from Greek heteros other
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 hetero



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

Scientific definitions for hetero


A prefix that means “different” or “other,” as in heterophyllous, having different kinds of leaves.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.