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.