grivation


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Related to grivation: gravitation

grivation

(ɡrɪˈveɪʃən)
n
(Navigation) nautical short for grid variation
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

grivation

Dictionary of Military and Associated Terms. US Department of Defense 2005.