third rail

third rail

noun

: a metal rail on a train track that carries electric current to the train's motor

: a difficult issue that politicians try to avoid talking about

Full Definition of THIRD RAIL

1

:  a metal rail through which electric current is led to the motors of an electric vehicle (as a subway car)

2

:  a controversial issue usually avoided by politicians

Yes, "irregardless" is a word. No, that
doesn't mean you should use it. »

Examples of THIRD RAIL

1. Social Security is the third rail of American politics.

First Known Use of THIRD RAIL

1867

Rhymes with THIRD RAIL

abseil, airmail, all hail, assail, avail, bake sale, bangtail, blackmail, blacktail, bobtail, broadscale, broadtail, bucktail, bud scale, canaille, cattail, chain mail, coattail, cocktail, contrail, curtail, derail, detail, doornail, dovetail, downscale, ducktail, e-mail, entail, exhale, fan mail, fantail, female, fife rail, fire sale, fishtail, folktale, foresail, foxtail, fresh gale, full-scale, gapped scale, Glendale, gray scale, greenmail, guardrail, Hallel, handrail, hangnail, headsail, hightail, hobnail, horntail, horsetail, impale, inhale, junk mail, Longueuil, lugsail, mainsail, mare's tail, Mondale, moon snail, oxtail, pass-fail, percale, pigtail, pintail, pinwale, plate rail, pot ale, prevail, rattail, regale, resale, rescale, retail, right whale, ringtail, Sangreal, Scottsdale, sea kale, shavetail, shirttail, skysail, slop pail, small-scale, snail mail, soft hail, split rail, springtail, spritsail, square sail, staysail, strong gale, surveil, swordtail, taffrail, tag sale, telltale, thumbnail, timescale, toenail, topsail, travail, trysail, unnail, unveil, upscale, ventail, voice mail, wage scale, wagtail, wassail, whiptail, white sale, whitetail, white whale, whole gale, wholesale, yard sale