# scrotum

/skɹˈəʊtəm/ (UK) · CEFR C2 · Noun

Source: https://englishreference.com/word/scrotum
Updated: 2026-05-20

## Definition

the external part of the body that holds the testicles. It is a skin-covered sac that helps keep the testicles at a temperature lower than the rest of the body.

For teachers: the external scrotal sac containing the testes, which is essential for the production of sperm. It is a specialized structure that regulates temperature through muscular contraction and relaxation.

## Examples

- The scrotum contains the testicles.
- The scrotum is sensitive to temperature changes, which is why it hangs outside the body to keep the testicles cool.
- In many mammals, the scrotum is a secondary sexual characteristic that develops during puberty to facilitate the maturation of spermatozoa in a thermally regulated environment.

---

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.