n.
A woman whose sexual orientation is to women.
adj.
Of, relating to, or being a lesbian. See Usage Note at gay.
[From the putative homosexuality of Sappho, lyric poet of Lesbos.]
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.