chiller

Meanings

1. Something that chills
2. a machine that produces cold air, either for air conditioning, to prepare chilled foods etc.
3. a heat exchanger between a coolant and a refrigerant, to transfer heat from the coolant loop into the refrigeration system
4. A machine that removes heat from the working fluid in a refrigeration cycle
5. A frightening dramatic work, such as a book or film

1. comparative form of chill: more chill

Etymology

From chill + -er.