the lower part of the female reproductive tract; a moist canal in female mammals extending from the labia minora to the uterus
"the vagina receives the penis during coitus"
"the vagina is elastic enough to allow the passage of a fetus"
The passage leading from the opening of the vulva to the cervix of the uterus for copulation and childbirth in female mammals.
"The doctor explained that during childbirth, the baby passes through the vagina before being born."
In plain English: The vagina is the muscular tube that connects the outside of your body to the uterus inside you.
"Doctors explain that maintaining good hygiene in the vagina is important for overall health."
Usage: Use this specific medical term only when precise anatomical accuracy is required, as it refers strictly to the internal canal rather than the external genitalia known collectively as the vulva. In everyday conversation or casual contexts regarding sexual health, people often incorrectly use "vagina" to describe all female private parts; reserve this word for situations where distinguishing between the inner and outer structures is necessary.