Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018British Dictionary definitions for testicle
Derived Formstesticular (tɛˈstɪkjʊlə), adjective
- either of the two male reproductive glands, in most mammals enclosed within the scrotum, that produce spermatozoa and the hormone testosteroneAlso called: testis
C15: from Latin testiculus, diminutive of testis testicle
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Word Origin and History for testicle
1590s, alteration of testicule (early 15c.), from Latin testiculus, diminutive of testis "testicle" (see testis). The Old English was herþan, probably originally "leather bag" (cf. heorþa "deer-skin"). The commonest slang terms for them in other languages are words that mean "balls," "stones," "nuts," "eggs."
Online Etymology Dictionary, © 2010 Douglas Harper
- A testis, especially one contained within the scrotum.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- Either of the testes of a male mammal together with the scrotum that contains it.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.