from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A 24th part of a sidereal day.
from the GNU version of the Collaborative International Dictionary of English
- n. the twenty-fourth part of a sidereal day.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. 1/24 of a sidereal day
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