What is the meaning of the word "machine pistol"?

Definitions:

  1. A lightweight submachine gun, capable of being fired with one hand. copy to clipboard NOUN
    • Criminal organizations often favored machine pistols due to their concealability and firepower. copy to clipboard
  2. A type of firearm that is capable of fully automatic or burst fire, typically resembling a handgun in size and design. copy to clipboard NOUN
    • The machine pistol's automatic firing mode allows it to shoot multiple rounds in quick succession. copy to clipboard
  3. Small, compact firearms that can fire multiple rounds in rapid succession, making them a hybrid between a pistol and a submachine gun. copy to clipboard NOUN
    • Due to its impact seize and high firepower, the machine pistol is ideal for use in confined spaces like buildings and vehicles. copy to clipboard

Synonyms: