coaming definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a raised border around a hatchway, roof opening, etc., to keep out water
Origin: 17th circa ; from uncertain or unknown; perhaps
coaming definition by American Heritage Dictionary
A raised rim or border around an opening, as in a ship's deck, designed to keep out water.
Origin: Origin unknown.