포유류 및 기타 고등 척추동물의 주요 외부 남성 생식 기관으로, 배뇨 및 성교 중 정자 전달 기능을 수행한다.
The primary external male genital organ in mammals and other higher vertebrates, functioning both for urination and for transferring sperm during sexual intercourse.
예문:
"The structure of the human penis allows it to become erect due to increased blood flow into the erectile tissue."
"In many cultures, the penis holds significant symbolic meaning regarding fertility and masculinity."
"Medical professionals often refer to the organ using its formal anatomical term, penis."