# testes

/ˈtɛsˌtiz/ (US) · /tˈɛstiːz/ (UK) · CEFR C1 · Noun

Source: https://englishreference.com/word/testes
Updated: 2026-05-30

## Definition

the two organs in the male body that produce sperm and the hormone testosterone. They are located outside the body in a skin sac called the scrotum.

For teachers: the male reproductive glands that produce sperm and the hormone testosterone. Plural in form; typically used in medical or biological contexts.

## Examples

- The doctor examined the testes for any signs of swelling.
- In many mammals, the testes remain inside the body until the animal reaches sexual maturity.
- The descent of the testes into the scrotum is a critical developmental milestone, as the lower temperature is necessary for the proper production of viable sperm cells.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.