verb (used with object), red·lined, red·lin·ing.
verb (used without object), red·lined, red·lin·ing.
- the maximum rotational speed, or angular velocity, of the engine crankshaft that is considered safe: often measured in rpm.
- a red line or boundary of a red area that delineates such a value, as on a tachometer.
- redlegged grasshopper,
- redmond, john edward,
Origin of redline
Examples from the Web for red-lined
He was about to fire, when one of the Indians in the hole below spotted the red-lined coat.An Autobiography of Buffalo Bill (Colonel W. F. Cody)|Buffalo Bill (William Frederick Cody)
Barbara and Reynold were apart from all the rest in the square, red-lined pew which had always belonged to the Rothwells.Mitchelhurst Place, Vol. I (of 2)|Margaret Veley
Mr. Dunbar took his faithful friend—his short pipe—from its red-lined case, filled it with tobacco, and began to draw luxuriously.Peter and Jane|S. (Sarah) Macnaughtan
In the smoke and din Ashby leaped forward, waving the red-lined cloak above his head.The Long Roll|Mary Johnston
Sam strutted around for some time after that, holding up his arm so that he might feast his eyes on the red-lined rating mark.The Battleship Boys at Sea|Frank Gee Patchin
also red-line, "mark in red ink," 1820, from red (adj.1) + line (v.). Specific sense of "deny loans to certain neighborhoods based on ethnicity" is from 1973, on notion of lines drawn on maps. Used earlier in reference to insurance company practices (1961) and in World War II military slang in reference to a red line drawn through a soldier's name for some infraction, thus denying his pay. Related: Redlined; redlining.