An automatic is a car in which the gears change automatically as the car's speed increases or decreases
Self - acting, operating by its own mechanism when actuated by some impersonal influence, as for example, a change in current strength, pressure, temperature or mechanical configuration
Pertaining to, or produced by, an automaton; of the nature of an automaton; self-acting or self-regulating under fixed conditions; esp
If something such as an action or a punishment is automatic, it happens without people needing to think about it because it is the result of a fixed rule or method. Those drivers should face an automatic charge of manslaughter + automatically auto·mati·cal·ly As an account customer, you are automatically entitled to a variety of benefits
Self-acting, operating by own mechanism when actuated by some impersonal influence, such as change in current strength, pressure, temperature or mechanical configuration
applied to machinery or devices in which certain things formerly or usually done by hand are done by the machine or device itself; as, the automatic feed of a lathe; automatic gas lighting; an automatic engine or switch; an automatic mouse