red line

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v. red·lined, red·lin·ing, red·lines
1. To refuse to provide mortgages, insurance, or other goods or services to areas deemed a poor economic risk, particularly when the residents are nonwhite.
2. To reach the maximum engine speed at which an engine is designed to be safely operated: The car redlined at 80 miles per hour in fourth gear.
3. Computers To mark or highlight edited text, as with a red line, to distinguish it from unedited portions of a document.
1. To practice redlining in (an area or community), as in declining to provide mortgages.
2. To remove from operational status because of mechanical defects or the need for scheduled maintenance: redlined three fighter aircraft.
3. Computers To mark (edited text) by redlining.
n. or red line
1. A safety limit, as marked on a gauge.
2. The furthest limit of what will be tolerated: The use of chemical weapons in the conflict will cross a red line and trigger immediate intervention.
3. Sports
a. The red line at the center of an ice hockey rink, running parallel to the goal lines and dividing the rink in half.
b. Either of two red lines running across an ice hockey rink near the end boards, in the center of which the goal is positioned.

red line

(Government, Politics & Diplomacy) a point beyond which a person or group is not prepared to negotiate

red′ line`

a line of the color red that is parallel to and equidistant from the goal lines and divides an ice hockey rink in half.
ThesaurusAntonymsRelated WordsSynonymsLegend: line - a line that is colored red and that bisects an ice hockey rinkred line - a line that is colored red and that bisects an ice hockey rink
line - in games or sports; a mark indicating positions or bounds of the playing area
References in classic literature ?
It was probably a shield with a red line down the middle of it, called in heraldry a pale.
She repressed a smile at sight of the red line that marked the chafe of the collar against the bronzed neck.
The marshes were just a long black horizontal line then, as I stopped to look after him; and the river was just another horizontal line, not nearly so broad nor yet so black; and the sky was just a row of long angry red lines and dense black lines intermixed.
Philip duly sent the papers and the money, and in return received a calendar worth about a penny, on which was set down the appointed passage to be read each day, and a sheet of paper on one side of which was a picture of the Good Shepherd and a lamb, and on the other, decoratively framed in red lines, a short prayer which had to be said before beginning to read.
Do you see those window-frames painted red, and the red lines on the doors and shutters?
Open your mouth," I said to Good, who promptly curled up his lips and grinned at the old gentleman like an angry dog, revealing to his astonished gaze two thin red lines of gum as utterly innocent of ivories as a new-born elephant.
It is a red line for me and it is a red line for the Labour Party.
Elgin Community College will host "The Long Red Line," a community effort to support One Billion Rising, a global movement to end rape, violence and oppression against women, Wednesday, Feb.
Service on Dubai Metro's red line has been delayed due to a technical fault, according to Roads and Transport Authority in Dubai (RTA).
Summary: RTA launches short trips to and from some of the busiest stations on Red line and additional trips on both lines from Sunday
Summary: Work on Route 2020 (metro Red Line extension) is set to begin by the end of this year, as per he Roads and Transport Authority (RTA).
The technological advances proliferating in these institutions have witnessed the advent of Washington's own wunderkind, Barack Obama, who has singlehandedly invented the revolutionary tactical tool known as the "Virtual Mobile Red Line," on which he has based much of his foreign policy.