Applied to a port lid or cover; a metal shutter fitted to protect the glass in a fixed or port light. Often incorrectly applied to a fixed light in a deck, bulkhead or shell.
Isivalo sesango lenqanawe; isivali-sinyithi esifakelwe ukukhusela iglasi kwindawo eqingqekileyo okanye kwisibane sesango lenqanawe.