ra‧di‧a‧tor /ˈreɪdieɪtə $ -ər/ noun [countable]

1. a thin metal container that is fastened to a wall and through which hot water passes to provide heat for a room

2. the part of a car or aircraft which stops the engine from getting too hot

[TahlilGaran] Dictionary of Contemporary English ▲

radiator
noun
I. equipment used for heating a room
ADJ. central heating, convector, storage
VERB + RADIATOR turn off/on | bleed You'll need to bleed the radiators to remove the airlocks.
RADIATOR + VERB leak
RADIATOR + NOUN key, valve

[TahlilGaran] Collocations Dictionary ▲

radiator
II. equipment for keeping an engine cool
ADJ. car
VERB + RADIATOR top up Top up the radiator before making a long journey.
RADIATOR + NOUN grille

[TahlilGaran] Collocations Dictionary ▲