Also found in: Medical.
An area of tissue surrounding the female urethra and running along the roof of the vagina, postulated to be erectile and to enhance sexual arousal.
[First described by Ernst G(räfenberg) (1881-1957), German obstetrician and gynecologist.]
Gräf′en•berg spot`(ˈgræf ənˌbɜrg, ˈgrɛf-)
a patch of tissue in the front wall of the vagina, claimed to be erectile and highly erogenous. Also called G spot.
[1980–85; after German-born gynecologist Ernst Gräfenberg (1881–1957), who is credited with first describing it]