third rail

(redirected from Third rail electric system)
Also found in: Thesaurus, Encyclopedia.
Related to Third rail electric system: conductor rail, Third rail electrification

third rail

n.
1. The rail that supplies the high voltage to power a train on an electric railway.
2. A subject that tends to be avoided because of its offensive or controversial nature: "Social Security, the 'third rail' of American politics" (Charles Stein).

third rail

n
1. (Railways) an extra rail from which an electric train picks up current by means of a sliding collector to feed power to its motors
2. politics
a. a cause or topic that is considered extremely dangerous for a person to support or comment on
b. (as modifier): a third-rail issue.

third′ rail′


n.
a rail in an electrified railroad that provides current to a car or locomotive.
[1865–70, Amer.]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.third rail - a rail through which electric current is supplied to an electric locomotive
rails, runway, rail, track - a bar or pair of parallel bars of rolled steel making the railway along which railroad cars or other vehicles can roll
Translations
strømskinne