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hetero

1 American  
[het-uh-roh] / ˈhɛt əˌroʊ /

adjective

  1. Chemistry. of or relating to an atom other than carbon, particularly in a cyclic compound.

  2. Informal. heterosexual.


noun

plural

heteros
  1. Informal. a heterosexual person.

hetero- 2 American  
especially before a vowel, heter-.
  1. a combining form meaning “different,” “other,” used in the formation of compound words.

    heterocyclic.


hetero- 1 British  

combining form

  1. other, another, or different Compare homo-

    heterodyne

    heterophony

    heterosexual

"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

hetero 2 British  
/ ˈhɛtərəʊ /

noun

  1. short for heterosexual

"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

hetero– Scientific  
  1. A prefix that means “different” or “other,” as in heterophyllous, having different kinds of leaves.


Etymology

Origin of hetero1

First recorded in 1930–35 hetero for def. 2; hetero def. 1 by shortening of heteroatom; hetero defs. 2, 3 by shortening of heterosexual; -o

Origin of hetero-2

Combining form of Greek héteros the other of two, other, different