Princeton's WordNet

1. damper(noun)

   a movable iron plate that regulates the draft in a stove or chimney or furnace

2. damper, muffler(noun)

   a device that decreases the amplitude of electronic, mechanical, acoustical, or aerodynamic oscillations

3. damper(noun)

   a depressing restraint

   "rain put a damper on our picnic plans"

Wiktionary

1. damper(Noun)

   Something that damps or checks:

2. damper(Noun)

   Bread made from a basic recipe of flour, water, milk, and salt, but without yeast.

Webster Dictionary

1. Damper(noun)

   that which damps or checks; as: (a) A valve or movable plate in the flue or other part of a stove, furnace, etc., used to check or regulate the draught of air. (b) A contrivance, as in a pianoforte, to deaden vibrations; or, as in other pieces of mechanism, to check some action at a particular time

The Standard Electrical Dictionary

1. Damper

   (a) A copper frame on which the wire in a galvanometer is sometimes coiled, which acts to damp the oscillations of the needle. (b) A tube of brass or copper placed between the primary and secondary coils of an induction coil. It cuts off induction and diminishes the current and potential of the secondary circuit. On pulling it out, the latter increases. It is used on medical coils to adjust their strength of action.

• demper, ontmoedigingAfrikaans
• موهِن للعَزيمَه، مُثْبِطArabic
• нещо угнетяващо/потискащоBulgarian
• arrefecimentoPortuguese (BR)
• studená sprchaCzech
• der DämpferGerman
• dæmperDanish
• κτ. που αποθαρρύνει ή προκαλεί εξασθένιση του ενδιαφέροντοςGreek
• ducha fríaSpanish
• külm duššEstonian
• هر چیزی که از شدت و میزان چیزی بکاهدFarsi
• vaimenninFinnish
• douche (froide)French
• גוֹרֵם לְדִכָּאוֹןHebrew
• पानी फेरने वालाHindi
• prigušujući, obeshrabrujućiCroatian
• hideg zuhanyHungarian
• sesuatu yang mengurangi kegiatanIndonesian
• e-ð eða e-r sem dregur úr; hömlurIcelandic
• doccia freddaItalian
• 水をさす人・物Japanese
• 기세(흥)를 꺾는 것(사람)Korean
• šaltas dušasLithuanian
• nomākt, apslāpēt sajūsmu/interesiLatvian
• pelemah semangatMalay
• domperDutch
• demperNorwegian
• zimny prysznicPolish
• هر چیزی که از شدت و میزان چیزی بکاهدPersian
• خفه كوونكى: لوندوونكىPashto
• arrefecimentoPortuguese
• duş receRomanian
• что-л. действующее расхолаживающеRussian
• studená sprcha, (niečo) pokaziťSlovak
• hladna prhaSlovenian
• koji obeshrabrujeSerbian
• sordinSwedish
• สิ่งที่ทำให้ท้อแท้หรือเสียใจThai
• neşe kaçırıcı şeyTurkish
• 令人掃興的事Chinese (Trad.)
• гасительUkrainian
• رغبت یا حوصلہ کم کرنے والی کوئی شیUrdu
• làm cụt hứngVietnamese
• 令人扫兴的事物（或人）Chinese (Simp.)