中ちゅう絶ぜつ性せい交こう

Meanings

1

noun

coitus interruptus; withdrawal method

Technical term for the contraceptive practice of withdrawing the penis before ejaculation. Used in medical or formal contexts.

mingle, mixing, association

膣ちつ外がい射しゃ精せい
Synonymous medical term; 膣外射精 is more explicit about ejaculation outside the vagina, while 中絶性交 emphasizes the interruption of intercourse.
避ひ妊にん
General term for contraception; 中絶性交 is one specific (and unreliable) method.

Compound of 中絶 (interruption) and 性交 (sexual intercourse), literally 'interrupted sexual intercourse'.