testicle

noun

tes·​ti·​cle ˈte-sti-kəl 

: testis

especially : one of a higher mammal usually with its enclosing structures

testicular

te-ˈsti-kyə-lər 

adjective

Examples of testicle in a Sentence

Recent Examples on the Web

Mumps can cause deafness and inflame the brain, pancreas, testicles, ovaries and breast tissue. — Los Angeles Times, 15 Aug. 2026

Taking testosterone when your levels are normal can disrupt other hormones, shrink testicles, and increase risks for infertility. — Teresa Maalouf, Verywell Health, 14 Aug. 2026

Male mice had lower sperm counts and less mobile sperm after QACs accumulated in testicles. — Sandee Lamotte, CNN Money, 11 Aug. 2026

As a younger cat, Kermit also was cryptorchid, meaning his testicles did not descend naturally and his neutering was a more invasive procedure than normal. — Greta Cross, USA Today, 31 July 2026

Word History

Etymology

Middle English testicule, from Latin testiculus, diminutive of testis

First Known Use

15th century, in the meaning defined above

Kids Definition

testicle

noun

tes·​ti·​cle ˈtes-ti-kəl 

: testis

Medical Definition

testicle

noun

tes·​ti·​cle ˈtes-ti-kəl 

: testis

especially : one with its enclosing structures