one-woman

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective Consisting of, featuring, or controlled by one woman.
• adjective Emotionally attached to or romantically involved with one woman only.

from the GNU version of the Collaborative International Dictionary of English.

• adjective Designed for or restricted to a single person; same as one-man, but used when the person in question is female, or to avoid sexist language.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• adjective designed for or restricted to a single person