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1 definition by xSilverSky

 
1.
(noun, verb)

An informal sketch over another person's piece of art to point out and correct flaws, especially in anatomy. The sketch is usually in red.
"This piece could really use a redline."

"Could you please redline my drawing of a hand for me, the proportions are off."
by xSilverSky June 29, 2009