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Feb 11, 2012
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Dictionary


back•sight



Pronunciation: (bak'sīt"), [key]
n. Survey.
1. a sight on a previously occupied instrument station.
2. (in leveling) the reading on a rod that is held on a point of known elevation, used in computing the elevation of the instrument.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

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