Third rail definitions

Third rail

1) Dangerous subway track 2) Electric power distribution 3) Source of electric current 4) Subway danger 5) Subway power conductor
Found on https://www.crosswordclues.com/clue/third-rail

[MLS supporters association] The Third Rail is an independent supporters group for New York City FC of Major League Soccer. It was founded on May 21, 2013, the same day as the expansion club was announced. The name of the club references the third rail, which provides power to the New York City Subway. ==History== The group began as a loose...
Found on http://en.wikipedia.org/wiki/Third_Rail_(MLS_supporters_association)

Third rail

A third rail is a method of providing electric power to a railway train, through a semi-continuous rigid conductor placed alongside or between the rails of a railway track. It is used typically in a mass transit or rapid transit system, which has alignments in its own corridors, fully or almost fully segregated from the outside environment. Third ...
Found on http://en.wikipedia.org/wiki/Third_rail

Third rail

[model railroading] The use of a third rail in rail transport modelling is a technique that is sometimes applied in order to facilitate easier wiring. ==Two-rail versus three-rail system== Early toy trains used two metal rail tracks like most real trains. However, manufacturers quickly found that using a center rail for electric power and t...
Found on http://en.wikipedia.org/wiki/Third_rail_(model_railroading)

Third rail

• An electric railway using such a rail. • The third rail used in the third-rail system.
Found on http://thinkexist.com/dictionary/meaning/third_rail/

third rail

(from the article `locomotive`) ...directly to the wheels; instead, a mechanical, electric, or hydraulic transmission must be used. The electric locomotive is not self-sufficient; ... ...motor traction became practicable in the 1980s. With electronics it was possible to compress to manageable weight and size the complex equipment ... ...
Found on http://www.britannica.com/eb/a-z/t/39