* As affecting the human body, heat produces different sensations, which are called by different names, as heat or sensible heat, warmth, cold, etc., according to its degree or amount relatively to the normal temperature of the body.

Else how had the world . . .
Avoided pinching cold and scorching heat! Milton.

It has raised . . . heats in their faces. Addison.

The heats smiths take of their iron are a blood-red heat, a white-flame heat, and a sparkling or welding heat. Moxon.

Many causes . . . for refreshment betwixt the heats. Dryden.

[He] struck off at one heat the matchless tale of "Tam o' Shanter." J. C. Shairp.

With all the strength and heat of eloquence. Addison.

Animal heat, Blood heat, Capacity for heat, etc. See under Animal, Blood, etc. -- Atomic heat (Chem.), the product obtained by multiplying the atomic weight of any element by its specific heat. The atomic heat of all solid elements is nearly a constant, the mean value being 6.4. -- Dynamical theory of heat, that theory of heat which assumes it to be, not a peculiar kind of matter, but a peculiar motion of the ultimate particles of matter. Heat engine, any apparatus by which a heated substance, as a heated fluid, is made to perform work by giving motion to mechanism, as a hot-air engine, or a steam engine. -- Heat producers. (Physiol.) See under Food. -- Heat rays, a term formerly applied to the rays near the red end of the spectrum, whether within or beyond the visible spectrum. -- Heat weight (Mech.), the product of any quantity of heat by the mechanical equivalent of heat divided by the absolute temperature; -- called also thermodynamic function, and entropy. -- Mechanical equivalent of heat. See under Equivalent. -- Specific heat of a substance (at any temperature), the number of units of heat required to raise the temperature of a unit mass of the substance at that temperature one degree. -- Unit of heat, the quantity of heat required to raise, by one degree, the temperature of a unit mass of water, initially at a certain standard temperature. The temperature usually employed is that of 0° Centigrade, or 32° Fahrenheit.

Heat me these irons hot. Shak.

Pray, walk softly; do not heat your blood. Shak.

A noble emulation heats your breast. Dryden.