内ない性せい器き

noun

internal genitals; internal sex organs

Anatomical term for the internal reproductive organs, often contrasted with 外性器 (external genitals).

See also: 外性器

• 内ない性せい器きの構こう造ぞうについて学まなぶ。

  Learn about the structure of the internal genitals.

• 内ない性せい器きと外がい性せい器きの違ちがいを説せつ明めいしてください。

  Please explain the difference between internal and external sex organs.