sexual dimorphism


the condition in which the males and females in a species are morphologically different, as with many birds.

Nearby words

  1. sextuplicate,
  2. sextus,
  3. sexual,
  4. sexual abuse,
  5. sexual deviation,
  6. sexual dwarf,
  7. sexual generation,
  8. sexual harassment,
  9. sexual infantilism,
  10. sexual intercourse

Origin of sexual dimorphism

First recorded in 1885–90

Related formssexually dimorphic, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for sexual dimorphism

sexual dimorphism


biology differences in appearance between the males and females of a species
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 sexual dimorphism

sexual dimorphism


The physical differences between male and female individuals that arise as a consequence of sexual maturation, including the secondary sex characteristics.

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