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mean (3)
mean deviation
mean distance
mean free path
mean lethal dose
mean-minded
mean reversion
mean sea level
mean solar day
mean-spirited
mean square
mean sun
mean time
mean value
meander
meanie
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mean solar day
mean so·lar day


noun 
Definition:
 
standard 24-hour day: the constant interval between two successive transits of the mean sun across the meridian.
Symbol  d
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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