Definitions
from The Century Dictionary.
- noun Nautical, a flapvalve outside of a scupper, to prevent the seawater from entering, but permitting flow from the inside. It is usually held in place by a lanyard.
Etymologies
Sorry, no etymologies found.
Support

Help support Wordnik (and make this page ad-free) by adopting the word scupper-valve.
Examples
Sorry, no example sentences found.
Comments
Log in or sign up to get involved in the conversation. It's quick and easy.