Definition of gas gun in English:

gas gun

noun

  • 1A gun in which the expansion of compressed gas is used to propel a bullet or other missile.

  • 2A gun for firing (cartridges of) poisonous gas, especially tear gas.

Origin

Mid 19th century; earliest use found in Young America. From gas + gun.

Pronunciation

gas gun

/ˈɡas ˌɡʌn/