Definition of "westing" [west•ing]

• The difference in longitude between two positions as a result of a movement to the west. (noun)
• Progress toward the west. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "I'z just "westing". . . some bears hibernate longer than others."
• "Here we were, well abreast and reeling off westing."
• "The regular passage is far to the east around Staten Island, which means a loss of westing, and here, at the tip of the world, where the great west wind, unobstructed by any land, sweeps round and around the narrow girth of earth, westing is the thing that has to be fought for mile by mile and inch by inch."