dimorphism dimorphism  /daɪ ˈmɔr fɪ zəm/


  1. (n) (chemistry) the property of certain substances that enables them to exist in two distinct crystalline forms
  2. (n) (biology) the existence of two forms of individual within the same animal species (independent of sex differences)


  • For example, visible anatomical differences that reveal gender sexual dimorphism are common among dinosaurs.


  • Are Men's Brains Just Bigger?

    The comparative anatomy of male and female brains is an incredibly popular topic. From teachers to cartoonists, everyone's interested in it. One supposed dude-dame dimorphism is the width of the corpus callosum, the white matter bridge that connects the brain's left and right hemispheres. Some studies suggest that women have a larger corpus callosum, relative to overall brain size, than men ...
    on September 25, 2013     Source: Discover


  • "It's really the systems with more extreme sex size dimorphism that are difficult to explain," Johnson says.
    on Oct 21, 2008 By: Chad Johnson Source: Science News

Word of the Day
affectation affectation
/ˌæ fɛk ˈteɪ ʃən /