Definition from Wiktionary, the free dictionary
coaming (plural coamings)
- (nautical) On a boat, the vertical side of above-deck structures, such as the coach roof, hatch, and cockpit.
- A raised frame, designed to deflect or prevent entry of water, around an opening (e.g., a hatch or skylight) in a flat surface, such as a roof or deck.
on a boat, the vertical side of the hatch