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grivation

American  
[gri-vey-shuhn, grahy-] / grɪˈveɪ ʃən, graɪ- /

noun

  1. grid variation.

grivation British  
/ ɡrɪˈveɪʃən /

noun

  1. nautical short for grid variation

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of grivation

gri(d) + v(ari)ation

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.