noun.
The state of being sexually and romantically attracted primarily to persons of the same sex.
noun.
Sexual activity with a person of the same sex.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
a sexual attraction to (or sexual relations with) persons of the same sex
Word Usage
"If, for example, homosexuality is objectively wrong, then it is simply irrelevant that a substantial portion of the human race finds homosexual activity pleasurable and satisfying, and that homosexuality* does no one else any material harm."