Mineralogy. the line of powder obtained by scratching a mineral or rubbing it upon a hard, rough white surface, often differing in color from the mineral in the mass, and serving as an important distinguishing character.
7.
Plant Pathology.
a.
an elongated, narrow, superficial lesion on stems or leaf veins, becoming brown and necrotic.
Origin: before 1000; (noun) Middle English streke, akin to strike,Old English strica stroke, line, mark; cognate with German Strich,Gothic striks stroke, Latin strigilstrigil; (v.) late Middle English streken to cross out, derivative of the noun (akin to strike, stroke1)
1768, "to go quickly, to rush, run at full speed," respelling (by association with streak (n.)) of streek "to go quickly" (late 14c.), originally "to stretch oneself" (mid-13c.), a northern M.E. variant of stretch (v.). Streaking "running naked in public" first recorded 1973.
The characteristic color of a mineral after it has been ground into a powder. Because the streak of a mineral is not always the same as its natural color, it is a useful tool in mineral identification.
A bacterial culture inoculated by drawing a bacteria-laden needle across the surface of a solid culture medium. Also called streak plate.
Any of various viral diseases of plants characterized by the appearance of discolored stripes on the leaves or stems.
in. to move rapidly from one place to another. : The train streaked into the station and came to a stop just inches from the end of the track.
in. to run about in a public place naked. : This kid was streaking back and forth until the cops caught him.
tv. to grace or ornament a public place or event with a naked run. : Charles streaked the baseball game, but nobody noticed him.
n. a naked run in a public place. (See also streaker.) : There was a streak at the end of the game, but people were leaving then and didn't see it.
n. an exciting time; a wild party. : We had a streak at Tom's.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition. Copyright 2007. Published by McGraw Hill.
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streaker definition
n. someone who runs naked in public places. : The streaker ran through a glass door and was severely injured.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition. Copyright 2007. Published by McGraw Hill.
Cite This Source