Natrix sipedon nat·rix·si·pedon uncommon noun 1. in some classifications placed in the genus Nerodia; western United States snake that seldom ventures far from water Synonymscommon water snakebanded water snakeNatrix sipedonNerodia sipedon Related words Broader terms water snake Parts Natrix WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
