either of two ground-nesting warblers of southern Australia, Hylacola pyrrhopygia or H. cauta, noted for their song and their powers of mimicry
noun 1. a number representing the effect of temperature and humidity on humans by combining the two variables into an “apparent” temperature, introduced as a replacement for the temperature-humidity index: a temperature of 90° and relative humidity of 65 percent combine to produce a heat index of 102. Abbreviation: H.I. heat index A measurement of […]
- Heating element
noun 1. a coil or other arrangement of wire in which heat is produced by an electric current
heat-labile adj. Destroyed or altered by heat.
- Heat of formation
noun 1. (chem) the heat evolved or absorbed when one mole of a compound is formed from its constituent atoms
noun, Physics. 1. the heat absorbed by a unit mass of a given solid at its melting point that completely converts the solid to a liquid at the same temperature: equal to the heat of solidification. heat of fusion The amount of heat required to convert a solid at its melting point into a liquid […]