1. (noun) automatic rifle, automatic, machine rifle
light machine gun
2. (adj) automatic pistol, automatic
a pistol that will keep firing until the ammunition is gone or the trigger is released
3. (adj) automatic
operating with minimal human intervention; independent of external control
"automatic transmission"; "a budget deficit that caused automatic spending cuts"
4. (adj) automatic, automatonlike, machinelike, robotlike, robotic
resembling the unthinking functioning of a machine
"an automatic `thank you'"; "machinelike efficiency"
5. (adj) automatic, reflex(a), reflexive
without volition or conscious control
"the automatic shrinking of the pupils of the eye in strong light"; "a reflex knee jerk"; "sneezing is reflexive"
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