redline
verbEtymology From red + line, originating with the frequent use of red pen or pencil to mark corrections on drawings and documents (1), and the red markings on a tachometer (2).
1
To mark a drawing or document for correction or modification.
2
To operate a device at one or more redlines.
3
Automotive, Transport, Vehicles To run an internal combustion engine to its maximum or maximum recommended speed.
4
Canada, US To deny or complicate access to services (such as banking, insurance, or healthcare) to residents in specific, often racially determined, areas.
- Already ‘redlined’ by profit-hungry telcos, the inhabitants of poor inner city areas can be shut out of the new on-line services through lack of money.1995 September, Richard Barbrook, Andy Cameron, “The Californian Ideology”, in Mute, volume 1, number 3, →ISSN, archived from the original on 19 Oct 2021:
5
Audio, Electrical engineering, Engineering, Natural sciences, Physical sciences To achieve audio levels that will cause clipping (indicated by red in an audio meter).
- Derived terms
- redliner
- Related terms
- redlining, sundown town