Definition of calefaction in English:

calefaction

Line breaks: cale|fac¦tion
Pronunciation: /kalɪˈfakʃ(ə)n
 
/

noun

[mass noun] rare
The process of heating or warming.
More example sentences
  • Coal-oil-fired generators and atomic energy plants cause large amounts of waste heat which is carried away as hot water and cause thermal pollution or calefaction.
  • The principal producers of calefaction are power plants.
  • The calefaction point of water is 178°, and that of alcohol 128°.

Origin

late Middle English: from Old French, or from late Latin calefactio(n-), from calefacere 'make warm' (see calefacient).

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