WORD ORIGIN noun, plural ep·i·di·dym·i·des . [ep-i-di- dim-i-deez, - did- uh-mi-] /ˌɛp ɪ dɪˈdɪm ɪˌdiz, -ˈdɪd ə mɪ-/ . Anatomy an elongated organ on the posterior surface of a testis that stores sperm while they mature and constitutes the convoluted beginning of the vas deferens. Origin of epididymis 1600–10;
didymous Related forms ep·i·did·y·mal, adjective
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for epididymides noun plural -didymides ( -dɪˈdɪmɪˌdiːz) anatomy a convoluted tube situated along the posterior margin of each testis, in which spermatozoa are stored and conveyed to the vas deferens Derived Forms epididymal, adjective Word Origin for epididymis
C17: from Greek
epididumis, from epi- + didumos twin, testicle; see didymous
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 epididymides n.
c.1600, "fleshy mass at the back of the testicles," Modern Latin, literally "that which is on the testicles," from Greek
epididymis, a word probably coined by Greek anatomist Herophilus (c.300 B.C.E.) from epi "on" (see epi-) + didymos "testicle," literally "double, twofold" (adj.). "To save his Epididamies" [Richard Brome, "The Court Beggar," 1652].
Online Etymology Dictionary, © 2010 Douglas Harper
epididymis [ĕp′ĭ-dĭd ′ə-mĭs] n. pl. ep•i•did•y•mi•des ( -mĭ-dēz′) A long, narrow, convoluted tube in the spermatic duct system that lies on the posterior aspect of each testicle and connects with the vas deferens.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.