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testis

[ tes-tis ]
/ ˈtɛs tɪs /
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noun, plural tes·tes [tes-teez]. /ˈtɛs tiz/. Anatomy, Zoology.
the male gonad or reproductive gland, either of two oval glands located in the scrotum.
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Origin of testis

1675–85; <Latin: “witness, spectator, testicle.” The sense “male gonad” is a loan translation from Greek parastátēs “bystander, supporter (at law),” in medical usage (in the dual and plural) “the (pair of) glands lying side by side, the testicles” (equivalent to para- para-1 + the combining form -statēs, from histánai “to make stand.”) Compare Greek prostátēs “one who stands in front, ruler,” in medical usage “the gland lying in front, the prostate
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use testis in a sentence

British Dictionary definitions for testis

testis
/ (ˈtɛstɪs) /

noun plural -tes (-tiːz)
another word for testicle

Word Origin for testis

C17: from Latin, literally: witness (to masculinity)
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

Scientific definitions for testis

testis
[ tĕstĭs ]

Plural testes (tĕstēz)
The primary reproductive organ of male animals, in which sperm and the male sex hormones (androgens) are produced. In most vertebrates, the testes are contained inside the body. In many mammals, however, the testes are enclosed in an external scrotum.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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