the condition in which the males and females in a species are morphologically different, as with many birds.
Words nearby sexual dimorphism
Origin of sexual dimorphism
First recorded in 1885–90
OTHER WORDS FROM sexual dimorphismsexually dimorphic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for 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
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.