Un″der‐shut′ (?), a. Closed from beneath.
Undershut valve(Mach.), a valve which shuts by being lifted against a seat facing downward. Knight.
Webster's Dictionary 1913
Un″der‐shut′ (?), a. Closed from beneath.
Undershut valve(Mach.), a valve which shuts by being lifted against a seat facing downward. Knight.