Definition of lesbian noun from the Oxford Advanced Learner's Dictionary

lesbian

noun
ˈlezbiən
 
; ˈlezbiən
 
(also informal lezzy, lezzie
 
;
 
)
 
a woman who is sexually attracted to other women
lesbians and gays compare gay, homosexuallesbian adjectivethe lesbian and gay communitya lesbian relationship lesbianism
 
;
 
noun [uncountable]