deadlight
noun
dead·light ˈded-ˌlīt 
: a metal cover or shutter fitted to a port to keep out light and water
Word History
First Known Use
1726, in the meaning defined above
- plate letter
- plate lock
- plate mark
- plate meristem
- plate metal
- plate mill
- plate modulation
- plate money
- plate number
- plate nut
- plate organ
- plate oven
- plate paper
- plate potential
- plate press
- plate printing
- plate proof
- plate rail
- plate resistance
- plate ship
- plate system
- plate tectonics
- plate tower
- plate tracery
- plate tumbler