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Define temperature. temperature synonyms, temperature pronunciation, temperature translation, English dictionary definition of temperature. n. 1. a. The degree of hotness or coldness of a body or environment. b. A measure of the average kinetic energy of the particles in a sample of matter,...
By Anne Marie Helmenstine, Ph.D. Definition: Room temperature is a range of temperatures that denote comfortable habitation for humans. There is no 'exact' room temperature. Room temperature can be any temperature between 20 Â°C and 29 Â°C. 300 K can also be used as room temperature for easy calculations when using absolute temperature. Related Articles.