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| a fool or simpleton; ninny. |
| a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes. |
| cathodic protection | |
| —n | |
| metallurgy See also sacrificial anode a technique for protecting metal structures, such as steel ships and pipelines, from electrolytic corrosion by making the structure the cathode in a cell, either by applying an electromotive force directly or by putting it into contact with a more electropositive metal | |