Meaning of adiabatic

ad•i•a•bat•ic

Pronunciation: (ad"ē-u-bat'ik, ā"dī-u-), [key]
— adj.
  1. occurring without gain or loss of heat (opposed to diabatic): an adiabatic process.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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