(redirected from caloric density)
Also found in: Dictionary, Thesaurus, Medical, Financial.


Obsolete a hypothetical elastic fluid formerly postulated as the embodiment of heat
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



a hypothetical substance (weightless fluid) representing heat by whose presence in bodies scientists of the 18th and early 19th centuries attempted to explain observed heat phenomena, such as the heating of bodies, heat exchange, thermal expansion, and thermal equilibrium. The caloric theory required that certain unusual properties be ascribed to this fluid, for example, weightlessness, an elasticity greater than that of all other substances, and an ability to penetrate and expand the tiniest pores of bodies. In the 18th century, scientists hypothesized the existence of weightless fluids besides caloric, among them phlogiston, to explain the physical and chemical properties of substances. Only at the beginning of the 19th century was it conclusively proven that heat phenomena are caused by the chaotic movement of atoms and molecules. An important role in refuting the caloric theory was played by the experiments of B. Rumford (1798) and H. Davy (1799) that proved that the heating of bodies can be brought about by mechanical work.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Supporting this argument, a large number of studies have reported that a flavoured-cue paired with nutrient can allow a flavour-nutrient association, and that this association depends on the caloric density of food (e.g., Ackroff, and Sclafani, 2006; Arbour, and Wilkie, 1988; Azzara and Sclafani, 1998; Warwick, et al., 1999).
The metering mechanism refers to the ability of rats to precisely calculate the caloric density of foods.
Our results point out the relevance of both contextual conditioning and caloric density of food to explain binge behaviour in rats.
Conditioned taste preferences based on caloric density. Journal of Experimental Psychology: Animal Behaviour Processes, 7, 59-69.
Patients should eat foods that are low in caloric density and exercise 30 minutes a day 5-6 days a week, he said.
The main difference between, a puppy-growth diet and an adult-maintenance diet is that the commercially offered food for younger dogs is higher in caloric density, protein content and minerals than adult food.
More than half of all foods in the study had a caloric density greater than the AAFCO maximum caloric density for light diets.
Ultimately, the authors recommended that pet food companies could assist in improving pet health by developing foods with lower caloric density on a volume basis, making accurate feeding directions based on optimal weight rather than current weight, and providing caloric information on all labels of pet foods and treats.
Your veterinarian will prescribe a food with high caloric density that can be administered through the tube.