Source : Webster's Revised Unabridged Dictionary (1913)

Streak \Streak\, v. t. [Cf. {Stretch}, {Streek}.]
   To stretch; to extend; hence, to lay out, as a dead body.
   [Obs. or Prov. Eng. & Scot.]

Streak \Streak\, n. [OE. streke; akin to D. streek a line,
   stroke, G. strich, AS. strica, Sw. strek, Dan. streg, Goth.
   stricks, and E. strike, stroke. See {Strike}, {Stroke}, n.,
   and cf. {Strake}.]
   1. A line or long mark of a different color from the ground;
      a stripe; a vein.

            What mean those colored streaks in heaven? --Milton.

   2. (Shipbuilding) A strake.

   3. (Min.) The fine powder or mark yielded by a mineral when
      scratched or rubbed against a harder surface, the color of
      which is sometimes a distinguishing character.

   4. The rung or round of a ladder. [Obs.]

Streak \Streak\, v. t. [imp. & p. p. {Streaked}; p. pr. & vb. n.
   {Streaking}.]
   1. To form streaks or stripes in or on; to stripe; to
      variegate with lines of a different color, or of different
      colors.

            A mule . . . streaked and dappled with white and
            black.                                --Sandys.

            Now streaked and glowing with the morning red.
                                                  --Prior.

   2. With it as an object: To run swiftly. [Colloq.]

Source : WordNet®

streak
     n 1: an unbroken series of events; "had a streak of bad luck";
          "Nicklaus had a run of birdies" [syn: {run}]
     2: a distinctive characteristic; "he has a stubborn streak"; "a
        streak of wildness"
     3: a marking of a different color or texture from the
        background [syn: {stripe}]
     4: a sudden flash (as of lightning)
     v 1: move quickly in a straight line; "The plane streaked across
          the sky"
     2: run naked in a public place
     3: mark with spots or blotches of different color or shades of
        color as if stained [syn: {mottle}, {blotch}]