endothermic
heated from within the body
exothermic
requires heat to be absorbed from outside the body
therm
a unit of heat equal to 1000 great calories
thermal
related to heat or temperature
thermodynamic
caused or operated by heat that has changed into different forms of energy
thermograph
a device that automatically writes down changes in temperature
thermometer
an instrument that measures temperature or heat
thermophile
an organism that has adapted to living in very high temperatures (heat), such as bacteria or algae
thermos
a container that is used to keep things warm, such as your soup; a double-walled container that keeps things warm
thermostat
a device used to control the temperature