superadiabatic lapse rate

superadiabatic lapse rate

[¦sü·pər‚ad·ē·ə′bad·ik ′laps ‚rāt]
(meteorology)
An environmental lapse rate greater than the dry-adiabatic lapse rate, such that potential temperature decreases with height.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.