Read the dictionary definition of automatic. All definitions for this word.
1. a pistol that will keep firing until the ammunition is gone or the trigger is released
2. light machine gun
3. operating with minimal human intervention; independent of external control
1. automatic transmission
2. a budget deficit that caused automatic spending cuts
4. resembling the unthinking functioning of a machine
1. an automatic `thank you'
2. machinelike efficiency
5. without volition or conscious control
1. the automatic shrinking of the pupils of the eye in strong light
2. a reflex knee jerk
3. sneezing is reflexive