Definitions for "Dryad"
Keywords:  nymph, fictional, inhabit, oak, spirit
A wood nymph; a nymph whose life was bound up with that of her tree.
a deity or nymph of the woods
a goddess who is associated with a tree
The DRYAD Numeral Cipher/Authentication System (KTC 1400 D) is a simple, paper cryptographic system currently in use by the U.S. military for authentication and for encryption of short, numerical messages. Every unit with a radio is given a set of DRYAD code sheets. A single sheet is valid for a limited time (e.g. 6 hours), called a cryptoperiod.
Keywords:  fairy, grown
a grown-up fairy
Keywords:  fictitious, planet, universe
Dryad is a fictitious planet in the DC Universe.
Keywords:  divine, semi
a semi-divine being