Dryad

noun

1. A divinity presiding over forests and trees; a wood nymph.
2. In mythology, a deity or nymph of the woods; a nymph supposed to reside in trees or preside over woods. See hamadryad.
3. In zoology, a kind of dormouse, Myoxus dryas.
4. A wood nymph; a nymph whose life was bound up with that of her tree.
5. In Greek myth, a female tree spirit.