Found 2 items, similar to lock washer.
English → English (WordNet) Definition: lock washer lock washer n : washer that prevents a nut from loosening [syn: lockring, lock ring]
English → English (gcide) Definition: Lock washer Lock washer \Lock" wash`er\, n. A washer that is not completely smooth or flat, designed to prevent a nut from loosening, placed under the nut on a screw or bolt. [1913 Webster]