HEAT
—none. 1 condition of being hot. 2 physics form of energy arising from the motion of bodies` molecules. 3 hot weather. 4 warmth of feeling; anger or excitement. 5 (foll. By of) most intense part or period of activity (heat of battle). 6 (usually. Preliminary or trial) round in a race etc. —verb. 1 make or become hot or warm. 2 inflame. ? on heat (of mammals, esp. Females) sexually receptive. [old english]