a combining form meaning “that which produces,” used in the formation of compound words: endogen; hydrogen.
Also -gene.

Origin of -gen

< French -gèneGreek -genēs born, produced; akin to Latin genus, kin Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for gen

Contemporary Examples of gen

Historical Examples of gen

  • My gen'lemen not like that camping place, and we stay there not even one night.

    It Happened in Egypt

    C. N. Williamson

  • But you didn't ought to have your dander ris with me, Gen'ral.'

  • Cap'ns are plenty as June bugs, but Majors and Gen'rals are scarce.

    The Depot Master

    Joseph C. Lincoln

  • And I'll keep a gen'ral overseein' of the whole thing, till we get a detective.

    The Depot Master

    Joseph C. Lincoln

  • I gen'rally do pay for what I want, and a fair price, at that.

    The Depot Master

    Joseph C. Lincoln

British Dictionary definitions for gen



informal informationgive me the gen on your latest project See also gen up

Word Origin for gen

C20: from gen (eral information)


abbreviation for

Bible Genesis


suffix forming nouns

producing or that which produceshydrogen
something producedcarcinogen

Word Origin for -gen

via French -gène, from Greek -genēs born
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

Word Origin and History for gen


word-forming element technically meaning "something produced," but mainly, in modern use, "thing that produces or causes," from French -gène (18c.), from Greek -genes "born of, produced by," related to genos "birth" (see genus). Originally in late 18th century chemistry and probably reflecting misunderstanding of -genes, as though it meant "that which produces."

Online Etymology Dictionary, © 2010 Douglas Harper

gen in Medicine



One that is produced:phosgene.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.