Definitions for radiatorˈreɪ diˌeɪ tər

This page provides all possible meanings and translations of the word radiator

Random House Webster's College Dictionary

ra•di•a•torˈreɪ diˌeɪ tər(n.)

  1. any of various heating devices, as a series or coil of pipes through which steam or hot water passes.

    Category: Thermodynamics

  2. a person or thing that radiates.

    Category: Thermodynamics

  3. a device constructed from thin-walled tubes and metal fins, used for cooling circulating water, as in an automobile engine.

    Category: Thermodynamics, Automotive

Origin of radiator:


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


  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


  1. Radiator

    Radiators are heat exchangers used to transfer thermal energy from one medium to another for the purpose of cooling and heating. The majority of radiators are constructed to function in automobiles, buildings, and electronics. The radiator is always a source of heat to its environment, although this may be for either the purpose of heating this environment, or for cooling the fluid or coolant supplied to it, as for engine cooling. Despite the name, radiators generally transfer the bulk of their heat via convection, not by thermal radiation, though the term "convector" is used more narrowly; see radiation and convection, below. The Roman hypocaust, a type of radiator for building space heating, was described in 15 AD. The heating radiator was invented by Franz San Galli, a Polish-born Russian businessman living in St. Petersburg, between 1855 and 1857.

Translations for radiator

Kernerman English Multilingual Dictionary


a type of apparatus for heating a room.

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