specific dynamic action n.
An increase in the production of heat caused by the ingestion of food, especially proteins.
noun, Physics. 1. the ratio of the density of any substance to the density of some other substance taken as standard, water being the standard for liquids and solids, and hydrogen or air being the standard for gases. specific gravity noun 1. the ratio of the density of a substance to that of water See […]
noun, Physics. 1. the number of calories required to raise the temperature of 1 gram of a substance 1°C, or the number of BTU’s per pound per degree F. 2. (originally) the ratio of the thermal capacity of a substance to that of standard material. specific heat See under heat capacity. specific heat definition The […]
- Specific heat capacity
noun 1. the heat required to raise unit mass of a substance by unit temperature interval under specified conditions, such as constant pressure: usually measured in joules per kelvin per kilogram ((for constant pressure)) cp Also called specific heat
noun 1. the ratio of the mass of water vapor in air to the total mass of the mixture of air and water vapor. specific humidity noun 1. the mass of water vapour in a sample of moist air divided by the mass of the sample