NCIt definition : The external, visible part of the female genitalia surrounding the urethral and vaginal
opening. The vulva includes the clitoris and inner as well as outer labia.;
Alternative definition : CDISC: The external, visible part of the female genitalia surrounding the urethral
and vaginal opening(s).; NCI-GLOSS: The external female genital organs, including the clitoris, vaginal lips,
and the opening to the vagina.; UBERON: External genital organs of the female mammal.;