[hek-sam-er-uh s]
  1. consisting of or divided into six parts.
  2. Zoology. having a radially symmetrical arrangement of organs in six groups.
  3. Botany. having six members in each whorl.

Origin of hexamerous

1855–60; < Late Latin hexamerus < Greek hexámeros of six parts, equivalent to hexa- hexa- + mér(os) share, part + -os adj. suffix (see -ous)
Related formshex·am·er·ism [hek-sam-uh-riz-uh m] /hɛkˈsæm əˌrɪz əm/, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for hexamerous



  1. (esp of the parts of a plant) arranged in groups of six
Derived Formshexamerism, noun
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