Standard Lemma guide

railgun

noun · 3 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • /ˈɹeɪl.ɡʌn/
  • /ˈɹeɪ.jəl.ɡʌn/
  • [ˈɹeɪɫ.ɡʌn]
  • [ˈɹeɪ.jəɫ.ɡʌn]

1

noun

Meaning 1

An electromagnetic gun that uses a large electrical current to propel a projectile down a track of two parallel conductive rails.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A railway gun.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

A benchrest rifle.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

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

Across languages

Translations

17 source translations are retained for this English entry.

  • Chinese Mandarin: 磁道炮 (cídàopào) — electromagnetic gun
  • Chinese Mandarin: 電磁炮 /电磁炮 (diàncípào) — electromagnetic gun
  • Esperanto: elektromagneta kanono — electromagnetic gun
  • Finnish: raidetykki — electromagnetic gun
  • French: canon électrique — electromagnetic gun
  • French: railgun — electromagnetic gun
  • German: Railgun — electromagnetic gun
  • German: Schienenkanone — electromagnetic gun
  • Hungarian: sínágyú — electromagnetic gun
  • Italian: Cannone a rotaia — electromagnetic gun
  • Japanese: レールガン (rērugan) — electromagnetic gun
  • Marathi: रेलगन (relgan) — electromagnetic gun
  • Portuguese: canhão elétrico — electromagnetic gun
  • Russian: рельсотро́н (relʹsotrón) — electromagnetic gun
  • Russian: ре́льсовая пу́шка (rélʹsovaja púška) — electromagnetic gun
  • Spanish: arma de riel — electromagnetic gun
  • Spanish: cañón de riel — electromagnetic gun
Real reading context

railgun in complete knowledge articles