Definition

A moderate state of cold; coolness; -- said of the temperature of the air between hot and cold; as, the cool of the day; the cool of the morning or evening.

Other Definitions

This word also has 2 other definitions:

COOL (adjective)

1. Moderately cold; between warm and cold; lacking in warmth; producing or promoting coolness. Fanned with cool winds. Milton. 2. Not ardent, warm, f...

COOL (verb)

1. To make cool or cold; to reduce the temperature of; as, ice cools water. Send Lazarus, that he may dip the tip of his finger in water, and cool my ...