Source : Webster's Revised Unabridged Dictionary (1913)

Ray \Ray\, v. t. [An aphetic form of array; cf. {Beray}.]
   1. To array. [Obs.] --Sir T. More.

   2. To mark, stain, or soil; to streak; to defile. [Obs.]
      ``The fifth that did it ray.'' --Spenser.

Ray \Ray\, n.
   Array; order; arrangement; dress. [Obs.]

         And spoiling all her gears and goodly ray. --Spenser.

Ray \Ray\, n. [OF. rai, F. rais, fr. L. radius a beam or ray,
   staff, rod, spoke of a wheel. Cf. {Radius}.]
   1. One of a number of lines or parts diverging from a common
      point or center, like the radii of a circle; as, a star of
      six rays.

   2. (Bot.) A radiating part of the flower or plant; the
      marginal florets of a compound flower, as an aster or a
      sunflower; one of the pedicels of an umbel or other
      circular flower cluster; radius. See {Radius}.

   3. (Zo["o]l.)
      (a) One of the radiating spines, or cartilages, supporting
          the fins of fishes.
      (b) One of the spheromeres of a radiate, especially one of
          the arms of a starfish or an ophiuran.

   4. (Physics)
      (a) A line of light or heat proceeding from a radiant or
          reflecting point; a single element of light or heat
          propagated continuously; as, a solar ray; a polarized
          ray.
      (b) One of the component elements of the total radiation
          from a body; any definite or limited portion of the
          spectrum; as, the red ray; the violet ray. See Illust.
          under {Light}.

   5. Sight; perception; vision; -- from an old theory of
      vision, that sight was something which proceeded from the
      eye to the object seen.

            All eyes direct their rays On him, and crowds turn
            coxcombs as they gaze.                --Pope.

   6. (Geom.) One of a system of diverging lines passing through
      a point, and regarded as extending indefinitely in both
      directions. See {Half-ray}.

   {Bundle of rays}. (Geom.) See {Pencil of rays}, below.

   {Extraordinary ray} (Opt.), that one or two parts of a ray
      divided by double refraction which does not follow the
      ordinary law of refraction.

   {Ordinary ray} (Opt.) that one of the two parts of a ray
      divided by double refraction which follows the usual or
      ordinary law of refraction.

   {Pencil of rays} (Geom.), a definite system of rays.

   {Ray flower}, or {Ray floret} (Bot.), one of the marginal
      flowers of the capitulum in such composite plants as the
      aster, goldenrod, daisy, and sunflower. They have an
      elongated, strap-shaped corolla, while the corollas of the
      disk flowers are tubular and five-lobed.

   {Ray point} (Geom.), the common point of a pencil of rays.

   {R["o]ntgen ray}(Phys.), a kind of ray generated in a very
      highly exhausted vacuum tube by the electrical discharge.
      It is capable of passing through many bodies opaque to
      light, and producing photographic and fluorescent effects
      by which means pictures showing the internal structure of
      opaque objects are made, called radiographs, or sciagraphs

Ray \Ray\, v. t. [imp. & p. p. {Rayed}; p. pr. & vb. n.
   {Raying}.] [Cf. OF. raier, raiier, rayer, L. radiare to
   irradiate. See {Ray}, n., and cf. {Radiate}.]
   1. To mark with long lines; to streak. [Obs.] --Chaucer.

   2. [From {Ray}, n.] To send forth or shoot out; to cause to
      shine out; as, to ray smiles. [R.] --Thompson.

Ray \Ray\, v. t.
   To shine, as with rays. --Mrs. Browning.

Ray \Ray\, n. [F. raie, L. raia. Cf. {Roach}.] (Zo["o]l.)
   (a) Any one of numerous elasmobranch fishes of the order
       Rai[ae], including the skates, torpedoes, sawfishes, etc.
   (b) In a restricted sense, any of the broad, flat,
       narrow-tailed species, as the skates and sting rays. See
       {Skate}.

   {Bishop ray}, a yellow-spotted, long-tailed eagle ray
      ({Stoasodon n[`a]rinari}) of the Southern United States
      and the West Indies.

   {Butterfly ray}, a short-tailed American sting ray
      ({Pteroplatea Maclura}), having very broad pectoral fins.
      

   {Devil ray}. See {Sea Devil}.

   {Eagle ray}, any large ray of the family {Myliobatid[ae]}, or
      {[AE]tobatid[ae]}. The common European species
      ({Myliobatis aquila}) is called also {whip ray}, and
      {miller}.

   {Electric ray}, or {Cramp ray}, a torpedo.

   {Starry ray}, a common European skate ({Raia radiata}).

   {Sting ray}, any one of numerous species of rays of the
      family {Trygonid[ae]} having one or more large, sharp,
      barbed dorsal spines on the whiplike tail. Called also
      {stingaree}.

Source : WordNet®

ray
     n 1: a column of light (as from a beacon) [syn: {beam}, {beam of
          light}, {light beam}, {ray of light}, {shaft}, {shaft of
          light}, {irradiation}]
     2: a branch of an umbel or an umbelliform inflorescence
     3: (mathematics) a straight line extending from a point
     4: a group of nearly parallel lines of electromagnetic
        radiation [syn: {beam}, {electron beam}]
     5: the syllable naming the second (supertonic) note of any
        major scale in solmization [syn: {re}]
     6: any of the stiff bony rods in the fin of a fish
     7: cartilaginous fishes having horizontally flattened bodies
        and enlarged winglike pectoral fins with gills on the
        underside; most swim by moving the pectoral fins

ray
     v 1: emit as rays; "That tower rays a laser beam for miles across
          the sky"
     2: extend or spread outward from a center or focus or inward
        towards a center; "spokes radiate from the hub of the
        wheel"; "This plants radiates spines in all directions"
        [syn: {radiate}]
     3: expose to radiation; "irradiate food" [syn: {irradiate}]