action mechanism

Noun
  1. The operating part that transmits power to a mechanism (synset 102680572)
    "the piano had a very stiff action"
    is a type of: mechanism - device consisting of a piece of machinery; has moving parts that perform some function
    subtypes:
    • firing mechanism, gunlock - the action that ignites the charge in a firearm
    • movement - the driving and regulating parts of a mechanism (as of a watch or clock)
    • piano action - action consisting of a system of levers that move a felt hammer to strike the strings when a key is depressed
    • pump action, slide action - action mechanism in a modern rifle or shotgun; a back and forward motion of a sliding lever ejects the empty shell case and cocks the firearm and loads a new round
    has: key - a lever (as in a keyboard) that actuates a mechanism when depressed
    is a part of:
    • gun - a weapon that discharges a missile at high velocity (especially from a metal tube or barrel)
    • keyboard - device consisting of a set of keys on a piano or organ or typewriter or typesetting machine or computer or the like
    same as: action

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