Calefaction
Nuttall's Standard Dictionary of the English Language · 1890 · p. 27
kal-e-fak' -shun, s. the production of heat; state of being heated.
Bu kavram başka kaynaklarda da geçiyor
The American Dictionary and Cyclopedia (1909)
Chamber's Twientieth Century Dictionary (1908)
An Illustrated Encyclopedic Medical Dictionary (1892)
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