a combining form meaning “six,” used in the formation of compound words: hexapartite.
Also especially before a vowel, hex-.
Origin of hexa-
combining form representing Greek héx six
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
before a vowel hex-
Word Origin for hexa-
from Greek, from hex 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
before vowels, hex-, word-forming element meaning "six," from Greek hexa-, comb. form of hex "six" (see six).
Online Etymology Dictionary, © 2010 Douglas Harper
Containing six atoms, molecules, or groups:hexose.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.