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testis

[tes-tis]
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noun, plural tes·tes [tes-teez] /ˈtɛs tiz/. Anatomy, Zoology.
  1. 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 Greekprostátēs “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. 2018

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British Dictionary definitions for teste

testis

noun plural -tes (-tiːz)
  1. another word for testicle
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Word Origin

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

Word Origin and History for teste

testis

n.

(plural testes), 1704, from Latin testis "testicle," usually regarded as a special application of testis "witness" (see testament), presumably because it "bears witness" to virility (cf. Greek parastates, literally "one that stands by;" and French slang témoins, literally "witnesses"). But Buck thinks Greek parastatai "testicles" has been wrongly associated with the legal sense of parastates "supporter, defender" and suggests instead parastatai in the sense of twin "supporting pillars, props of a mast," etc. Walde, meanwhile, suggests a connection between testis and testa "pot, shell, etc."

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Online Etymology Dictionary, © 2010 Douglas Harper

teste in Medicine

testis

(tĕstĭs)
n. pl. tes•tes (-tēz)
  1. The male reproductive gland, the source of spermatozoa and the androgens, normally occurring paired in an external scrotum.didymus orchis
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

teste in Science

testis

[tĕstĭs]
Plural testes (tĕstēz)
  1. 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.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.