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English word valve comes from Latin valva (Double or folding door (in plural). One leaf of such doors.)
valva (Latin)
Double or folding door (in plural). One leaf of such doors.
valve (English)
(transitive) To control (flow) by means of a valve. (British) A vacuum tube.. (anatomy) One or more membranous partitions, flaps, or folds, which permit the passage of the contents of a vessel or cavity in one direction, but stop or control the flow in the opposite direction. (biology) One of the pieces or divisions of bivalve or multivalve shells.. (biology) One of the two similar portions [...]