Definition of "ray" in English

noun

1. A beam of light or radiation.

   • I saw a ray of light through the clouds.

2. (zoology) A rib-like reinforcement of bone or cartilage in a fish's fin.

3. (zoology) One of the spheromeres of a radiate, especially one of the arms of a starfish or an ophiuran.

4. (botany) A 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. (obsolete) Sight; perception; vision; from an old theory of vision, that sight was something which proceeded from the eye to the object seen.

6. (mathematics) A line extending indefinitely in one direction from a point.

verb

1. (transitive) To emit something as if in rays.

2. (intransitive) To radiate as if in rays.

3. (transitive) To expose to radiation.

noun

1. Any of the superorder Batoidea of marine fish with flat bodies, large wing-like fins, and whip-like tails.

verb

1. (obsolete) To arrange.

2. (now rare) To dress, array (someone).

3. (obsolete) To stain or soil; to defile.

noun

1. (obsolete) Array; order; arrangement; dress.

noun

1. The letter ⟨/⟩, one of two which represent the r sound in Pitman shorthand.

noun

1. (music) Alternative form of re.