The Collaborative International Dictionary of English v.0.48:

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.
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            A mule . . . streaked and dappled with white and
            black.                                --Sandys.
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            Now streaked and glowing with the morning red.
                                                  --Prior.
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   2. With it as an object: To run swiftly. [Colloq.]
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The Collaborative International Dictionary of English v.0.48:

Streak \Streak\, v. t. [Cf. Stretch, Streek.]
   To stretch; to extend; hence, to lay out, as a dead body.
   [Obs. or Prov. Eng. & Scot.]
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The Collaborative International Dictionary of English v.0.48:

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.
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            What mean those colored streaks in heaven? --Milton.
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   2. (Shipbuilding) A strake.
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   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.
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   4. The rung or round of a ladder. [Obs.]
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WordNet (r) 3.0 (2006):

streak
    n 1: an unbroken series of events; "had a streak of bad luck";
         "Nicklaus had a run of birdies" [syn: streak, run]
    2: a distinctive characteristic; "he has a stubborn streak"; "a
       streak of wildness"
    3: a narrow marking of a different color or texture from the
       background; "a green toad with small black stripes or bars";
       "may the Stars and Stripes forever wave" [syn: stripe,
       streak, bar]
    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, streak, blotch]