Word of the Day

Monday, December 09, 2013


\kuh-lawr-uh-FEY-shuhnt, -lor-, kal-er-uh-\ , adjective;
(of foods) producing heat.
The division of food into azotized and non-azotized is no doubt important, but the attempt to show that the first only is plastic or nutritive, while the second is simply calorifacient, or heat-producing, fails entirely in the face of the facts revealed by the study of man in different climates...
-- Oliver Wendell Holmes, "Border Lines of Knowledge in Some Provinces of Medical Science," 1861
It has been attempted on the basis of their supposed physiological destination, and thus they were divided into the histogenetic and the calorifacient substances; the one going, as was imagined, solely to the formation of tissue, and the other entirely to maintain the heat of the body.
-- William Alexander Hammond, A Treatise on Hygiene, 1863
Calorifacient comes from the Latin calōrifacĕre meaning "to make heat." It entered English in the mid-1800s.
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