damper

Noun
  1. A movable iron plate that regulates the draft in a stove or chimney or furnace (synset 103166391)
    is a type of: plate - a sheet of metal or wood or glass or plastic
    is a part of: chimney - a vertical flue that provides a path through which smoke from a fire is carried away through the wall or roof of a building
  2. A device that decreases the amplitude of electronic, mechanical, acoustical, or aerodynamic oscillations (synset 103166116)
    is a type of: device - an instrumentality invented for a particular purpose
    subtypes:
    • damper block, piano damper - damper consisting of a small felted block that drops onto a piano string to stop its vibration
    • dash-pot - a mechanical damper; the vibrating part is attached to a piston that moves in a chamber filled with liquid
    • cushion, shock, shock absorber - a mechanical damper; absorbs energy of sudden impulses
    same as: muffler
  3. A depressing restraint (synset 101148418)
    "rain put a damper on our picnic plans"
    is a type of: restraint - the act of controlling by restraining someone or something

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