An adult female person (as opposed to a man)(noun)
WordNet. Princeton University. 2010.
Use "adult female" in a sentence
"In the complete metamorphosis life cycle, the adult female insect lays an egg and a worm-like creature called a larva hatches from the egg."
"They began by working with young adult female mice in their Arkansas lab, to see whether TCE might stimulate an autoimmune reaction in their immune systems."