adiabatic

Occurring without loss or gain of heat.

My hot pants were adiabatic on the straight boy until he had a few drinks in him. ;)

by Dustin Belleau September 6, 2003

adiabaticity

Whether or not, or to what degree, a device is adiabatic.

For comparison, and to determine adiabaticity of the heat exchanger, Q was also found based upon the cold water.

by Group7L01 December 5, 2007