consisting of or divided into six parts.
Zoology. having a radially symmetrical arrangement of organs in six groups.
Botany. having six members in each whorl.
Origin of hexamerous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
(esp of the parts of a plant) arranged in groups of six
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