See Also: Testis(medicine)
testis(dictionary)
Testis(health)
testis(dictionary)
retractile testis(medicine)
rete testis(medicine)
movable testis(medicine)
mediastinum testis(medicine)
lobuli testis(medicine)
lobules of testis(medicine)

testis (iou)



testis noun. . E18.
[Latin = witness (i.e. to virility).]
Anatomy.
The primary male organ of reproduction (paired in humans and other vertebrates), in which sperm are produced; a testicle. E18.
retractile testis: see RETRACTILE adjective1.
b. The ovary in females. E18-M19.
In pl. The posterior pair of optic lobes at the base of the brain in mammals. rare. L19.