- plural of testis.
- the male gonad or reproductive gland, either of two oval glands located in the scrotum.
Origin of testis
Examples from the Web for testes
Testes large, ovoid, granular; length of left testis 11.0 mm.Descriptions of New Hylid Frogs From Mexico and Central America
William E. Duellman
Testes of mature individuals are pale yellow and slightly oblong.
Testes sunt permulti in utramque partem, sed brevitatis causa familia contenti erimus una.De Officiis
Marcus Tullius Cicero
Testes of male will be found under fore end of pelvis and are white, in young bird, very small.Taxidermy
Leon Luther Pray
Testes of three adult males measured 17, 19, and 22; of three females, none evidenced reproductive activity.Mammals of Northwestern South Dakota
Kenneth W. Andersen
- the plural of testis
- another word for testicle
Word Origin and History for testes
(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."
- The male reproductive gland, the source of spermatozoa and the androgens, normally occurring paired in an external scrotum.didymus orchis
- 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.