Coamings

• (n. pl.) Raised pieces of wood of iron around a hatchway, skylight, or other opening in the deck, to prevent water from running bellow; esp. the fore-and-aft pieces of a hatchway frame as distinguished from the transverse head ledges.
Found on http://thinkexist.com/dictionary/meaning/coamings/

Coamings

Coam'ings noun plural [ Confer Comb a crest.] (Nautical) Raised pieces of wood of iron around a hatchway, skylight, or other opening in the deck, to prevent water from running bellow; esp. the fore-and-aft pieces of a hatchway frame as distinguished from the transverse head ledges. [ Written...
Found on http://www.encyclo.co.uk/webster/C/99

Coamings

On a ship, coamings are raised frames rather higher than the deck, about the edges of the hatch-openings, to prevent the water on deck from running down.
Found on http://www.probertencyclopaedia.com/browse/RCA.HTM
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