four-degree calorie

four-degree calorie

[¦fȯr di¦grē ′kal·ə·rē]
(chemistry)
The heat needed to change the temperature of 1 gram of water from 3.5 to 4.5°C.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.