One of the mysteries of the English language finally explained.
The process of heating or warming.
hotness, warmth, warmness, high temperatureView synonyms
- ‘The calefaction point of water is 178°, and that of alcohol 128°.’
- ‘The principal producers of calefaction are power plants.’
- ‘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.’
- ‘It is entirely erroneous to say all calefaction is from solar rays directly.’
- ‘Such ecological alterations as have been observed as a result of the local calefaction of the river to date appear to be relatively inconsequential.’
Late Middle English: from Old French, or from late Latin calefactio(n-), from calefacere ‘make warm’ (see calefacient).
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