Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun The rate of decrease of atmospheric temperature with increase in altitude.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun meteorology The
rate ofchange inatmospheric temperature withincrease ofheight . Thevariable normally is temperature unless specified otherwise. This is avertical direction of travel (up or down), and the temperature may rise or fall suddenly.
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