Meaning of AUTOMATIC in English

[] adj [Gk automatos self-acting, fr. aut- + -matos (akin to L ment-, mens mind)--more at mind] (1748) 1 a: largely or wholly involuntary; esp: reflex

5. "~ blinking of the eyelids" b: acting or done spontaneously or unconsciously c: done or produced as if by machine: mechanical "the answers were ~"

2: having a self-acting or self-regulating mechanism 3 of a firearm: using either gas pressure or force of recoil and mechanical spring action for repeatedly ejecting the empty cartridge shell, introducing a new cartridge, and firing it syn see spontaneous -- adv -- n

[2]automatic n (1902) 1: a machine or apparatus that operates automatically: as a: an automatic firearm b: an automatic gear-shifting mechanism

2: a semiautomatic firearm

3: audible

Merriam-Webster English vocab.      Английский словарь Merriam Webster.