4. Indication of high temperature; appearance, condition, or color of a body, as indicating its temperature; redness; high
color; flush; degree of temperature to which something is heated, as indicated by appearance, condition,
or otherwise.
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. 5. A single complete operation of heating, as at a forge or in a furnace; as, to make a horseshoe in a
certain number of heats.
6. A violent action unintermitted; a single effort; a single course in a race that consists of two or more
courses; as, he won two heats out of three.
Many causes . . . for refreshment betwixt the heats.
Dryden.
[He] struck off at one heat the matchless tale of "Tam o' Shanter."
J. C. Shairp. 7. Utmost violence; rage; vehemence; as, the heat of battle or party. "The heat of their division." Shak.
8. Agitation of mind; inflammation or excitement; exasperation. "The heat and hurry of his rage." South.
9. Animation, as in discourse; ardor; fervency.
With all the strength and heat of eloquence.
Addison. 10. Sexual excitement in animals.
11. Fermentation.
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
(Heat) v. t. [imp. & p. p. Heated; p. pr. & vb. n. Heating.] [OE. heten, AS. h&aemacrtan, fr.
hat hot. See Hot.]
1. To make hot; to communicate heat to, or cause to grow warm; as, to heat an oven or furnace, an iron,
or the like.
Heat me these irons hot.
Shak.
