movable flue
21damper — ► NOUN 1) a pad silencing a piano string. 2) a device for reducing vibration or oscillation. 3) a movable metal plate in a flue or chimney, used to regulate the draught. ● put a damper on Cf. ↑put a damper on …
22damper — [dam′pər] n. [see DAMP] 1. anything that deadens or depresses 2. a movable plate or valve in the flue of a stove or furnace, for controlling the draft 3. a device to check vibration in the strings of a stringed keyboard instrument 4. a device for …
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