Definitions
1.nounA beam of light or radiation."I saw a ray of light through the clouds."
2.nounA rib-like reinforcement of bone or cartilage in a fish's fin.
3.nounOne of the spheromeres of a radiate, especially one of the arms of a starfish or an ophiuran.
4.nounA radiating part of a flower or plant; the marginal florets of a compound flower, such as an aster or a sunflower; one of the pedicels of an umbel or other circular flower cluster; radius.
5.nounSight; perception; vision; from an old theory of vision, that sight was something which proceeded from the eye to the object seen.
6.nounA line extending indefinitely in one direction from a point.
7.nounA tiny amount."Unfortunately he didn't have a ray of hope."
8.verbTo emit something as if in rays.
9.verbTo radiate as if in rays.