- having the capability of starting, operating, moving, etc., independently: an automatic sprinkler system; an automatic car wash.
- Physiology. occurring independently of volition, as certain muscular actions; involuntary.
- done unconsciously or from force of habit; mechanical: an automatic application of the brakes.
- occurring spontaneously: automatic enthusiasm.
- (of a firearm, pistol, etc.) utilizing the recoil or part of the force of the explosive to eject the spent cartridge shell, introduce a new cartridge, cock the arm, and fire it repeatedly.
- on automatic, being operated or controlled by or as if by an automatic device.
Origin of automatic
Examples from the Web for quasi-automatic
But this quasi-automatic promotion from rank to rank was in fact far from being as regular as has been imagined.Guilds in the Middle Ages
- performed from force of habit or without conscious thought; lacking spontaneity; mechanicalan automatic smile
- (of a device, mechanism, etc) able to activate, move, or regulate itself
- (of an act or process) performed by such automatic equipment
- (of the action of a muscle, gland, etc) involuntary or reflex
- occurring as a necessary consequencepromotion is automatic after a year
- (of a firearm)
- an automatic firearm
- a motor vehicle having automatic transmission
- a machine that operates automatically
Word Origin and History for quasi-automatic
"self-acting, moving or acting on its own," 1812, from Greek automatos, used of the gates of Olympus and the tripods of Hephaestus (also "without apparent cause, by accident"), from autos "self" (see auto-) + matos "thinking, animated" (see automaton). Of involuntary animal or human actions, from 1748, first used in this sense by English physician and philosopher David Hartley (1705-1757). In reference to a type of firearm, from 1877; specifically of machinery that imitates human-directed action from 1940.
"automatic weapon," 1902, from automatic (adj.). Meaning "motorized vehicle with automatic transmission" is from 1949.