nonreturn
noun 1adj 1
Definitions
noun
1
Absence of return; failure to come back or bring back.
adj
1
Allowing air or liquid to travel in one direction only, and not permitting its return. (of a valve)
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noun
Absence of return; failure to come back or bring back.
adj
Allowing air or liquid to travel in one direction only, and not permitting its return. (of a valve)