Princeton's WordNet

1. radiator(noun)

   any object that radiates energy

2. radiator(noun)

   heater consisting of a series of pipes for circulating steam or hot water to heat rooms or buildings

3. radiator(noun)

   a mechanism consisting of a metal honeycomb through which hot fluids circulate; heat is transferred from the fluid through the honeycomb to the airstream that is created either by the motion of the vehicle or by a fan

Kernerman English Learner's Dictionary

1. radiator(noun)ˈreɪ diˌeɪ tər

   a device that gives out heat in a building

   old-fashioned metal radiators

2. radiatorˈreɪ diˌeɪ tər

   the cooling device in an engine

   a leaking radiator

Wiktionary

1. radiator(Noun)

   Anything which radiates or emits rays.

2. radiator(Noun)

   (Automotive) A device that lowers engine coolant temperature by conducting heat to the air, through metal fins.

3. radiator(Noun)

   (Buildings) A finned metal fixture that carries hot water or steam in order to heat a room.

4. radiator(Noun)

   A type of antenna.

Webster Dictionary

1. Radiator(noun)

   that which radiates or emits rays, whether of light or heat; especially, that part of a heating apparatus from which the heat is radiated or diffused; as, a steam radiator

• verwarmerAfrikaans
• رادياتور: جِهاز تَدْفِئَهArabic
• радиаторBulgarian
• aquecedorPortuguese (BR)
• topné tělesoCzech
• der HeizkörperGerman
• radiatorDanish
• καλοριφέρGreek
• radiadorSpanish
• radiaatorEstonian
• بخاری؛ رادیاتورFarsi
• lämpöpatteriFinnish
• radiateurFrench
• מַקרֵן חוֹםHebrew
• उष्मा संचालक हीटरHindi
• radijatorCroatian
• radiátorHungarian
• alat pemanasIndonesian
• (miðstöðvar)ofnIcelandic
• radiatoreItalian
• 暖房器Japanese
• 난방기Korean
• radiatoriusLithuanian
• radiatorsLatvian
• radiatorMalay
• radiatorDutch
• radiatorNorwegian
• kaloryferPolish
• بخاری؛ رادیاتورPersian
• ريډيټر(هغه اله چه دتودولو اوسړولودپاره استعماليږىPashto
• radiatorRomanian
• батареяRussian
• vyhrievacie teleso / zariadenieSlovak
• radiatorSlovenian
• radijatorSerbian
• värmeelementSwedish
• เครื่องนำความร้อนThai
• kalorifer, radyatörTurkish
• 暖氣裝置Chinese (Trad.)
• радіатор; батареяUkrainian
• گرمتابہ جو کمرے کو گرم کرنے کے کام آتا ہےUrdu
• lò sưởiVietnamese
• 暖气装置, ，散热器, ，暖气片Chinese (Simp.)