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hexa-

American  
especially before a vowel, hex-.
  1. a combining form meaning “six,” used in the formation of compound words.

    hexapartite.


hexa- British  

combining form

  1. six

    hexachord

    hexameter

"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

Usage

What does hexa- mean? Hexa- is a combining form used like a prefix meaning “six.” It is used in a great many scientific and other technical terms. In chemistry, hexa- is specifically used to indicate six atoms or six groups of atoms in compounds, e.g., hexachloride. Hexa- comes from the Greek héx, meaning “six.” The Latin for “six” is sex, source of the combining forms sex- and sexi-, which you can learn more about at our Words That Use articles for the terms. And we know what you’re thinking: the Latin sex has no relation to that common English meaning of sex. What are variants of hexa-?When combined with words or word elements that begin with a vowel, hexa- becomes hex-, as in hexose.

Etymology

Origin of hexa-

Combining form representing Greek héx six