railgun

Alternative forms

 * rail gun

Etymology
From.
 * From being a gun mounted on a rail car, and being railroad-mobile.
 * From being a projectile ejecting device with a pair of electric conducting rails that a launch sled runs along, which shoots the projectile.

Noun

 * 1) An electromagnetic gun that uses a large electrical current to propel a projectile down a track of two parallel conductive rails.
 * 2) A railway gun.
 * 3) A benchrest rifle.

Translations

 * Chinese:
 * Mandarin: 磁道炮,
 * Esperanto: elektromagneta kanono
 * Finnish: raidetykki
 * French: ,
 * German: Railgun, Schienenkanone
 * Italian: Cannone a rotaia
 * Japanese:
 * Marathi: रेलगन
 * Portuguese: canhão elétrico
 * Russian:, ре́льсовая пу́шка
 * Spanish: arma de riel, cañón de riel