Lesbianism

n. female homosexuality (sexual attraction to members of the same sex)

A lesbian is a woman who is romantically and sexually attracted only to other women. Women who are attracted to both women and men are more often referred to as bisexual. An individual's self-identification might not correspond with her behavior, and may be expressed with either, both, or neither of these words.
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Noun
1. female homosexuality
(synonym) sapphism
(hypernym) homosexuality, homosexualism, homoeroticism, gayness
(hyponym) tribadism

Female homosexuality. Also called sapphism (after the lesbian poet Sappho).

Synonyms and related words:
active algolagnia, algolagnia, algolagny, amphierotism, autoeroticism, bisexuality, coprophilia, exhibitionism, fetishism, heterosexuality, homoeroticism, homosexualism, homosexuality, incest, incestuousness, masochism, narcissism, necrophilia, paraphilia, passive algolagnia, pedophilia, sadism, sadomasochism, sapphism, scotophilia, sexual inversion, sexual normality, sexual preference, swinging both ways, transvestitism, tribadism, tribady, voyeurism, zooerastia, zoophilia