Definition of chillers:
(n) :
a machine that produces cold air, either for air conditioning, to prepare chilled foods etc.
(n) :
A machine that removes heat from the working fluid in a refrigeration cycle
(n) :
a heat exchanger between a coolant and a refrigerant, to transfer heat from the coolant loop into the refrigeration system
(n) :
Something that chills
(n) :
A frightening dramatic work, such as a book or film