a person or thing that damps or depresses: His glum mood put a damper on their party.
a movable plate for regulating the draft in a stove, furnace, etc.
a device in stringed keyboard instruments to deaden the vibration of the strings.
the mute of a brass instrument, as a horn.
an attachment to keep the indicator of a measuring instrument from oscillating excessively, as a set of vanes in a fluid or a short-circuited winding in a magnetic field.
a shock absorber.
a round, flat cake made of flour and water, and cooked over a campfire.