Specific heat
The quantity of heat necessary to increase the temperature of a unit of the mass of a substance 1 °C. The specific heat of a substance is the ratio of its specific heat capacity to the specific heat capacity of water.
Also defined in 1 more source
The number of BTUs of heat energy needed to change the temperature of one pound of a substance 1 °F.
Aviation Maintenance Technician Handbook — Airframe, p. G-32