third rail

noun

Meaning

The electrified rail that runs beside or between train tracks to power electric trains.
(by extension) anything that is dangerous to come into contact with, or is best avoided.

Etymology / origin

No prose etymology has been added yet.

No ancestor words have been linked yet.

Related words

fourth rail(English)rail(English)railtrack(English)light rail(English)running rail(English)battery electric multiple unit(English)railroad(English)rail gun(English)

Descendant words

No descendant words have been linked yet.

Sources

DictionaryAPI.dev English dictionary data