(n) :
(nautical) A strong (often wooden) shutter fitted over a porthole, that can be closed in bad weather to keep water out and discourage the glass windows from breaking.
(n) :
(nautical) A deck prism, a device to allow light into the cabin of boat through the deck.
(n) :
(nautical) A strong (often wooden) shutter fitted over a porthole, that can be closed in bad weather to keep water out and discourage the glass windows from breaking.
(n) :
(nautical) A deck prism, a device to allow light into the cabin of boat through the deck.