vulva

Etymology

Learned borrowing from Latin vulva, earlier volva (“womb, female sexual organ”), probably from volvō (“to turn, wrap around”). Akin to Sanskrit उल्ब (úlba, “womb”).

noun

1. (anatomy) The external female sexual organs, collectively.
   The wedge-shaped character was the triangle, the archaic Paleolithic sign of the vulva; the pubic triangle was at the end of the phallic stylus. 1981, William Irwin Thompson, The Time Falling Bodies Take to Light: Mythology, Sexuality and the Origins of Culture, London: Rider/Hutchinson & Co., page 22
   Many of the less-sophisticated works are sexual in nature. Among the most common images are stylised vulvas, whole flocks of which appear on some cave walls. 2018, Tim Flannery, Europe: A Natural History, page 216
2. (biology) A protrusion on the side of a nematode.