nəˈtanchə noun plural
Usage: capitalized
Etymology: New Latin, from Latin, neuter plural of natant-, natans, present participle of natare
: a suborder of Decapoda comprising crustaceans (as the shrimps, prawns, and related forms) that have the rostrum usually long, the first antenna with a stylocerite, the second antennal scale larger, and the abdomen well-developed, somewhat compressed laterally, and frequently flexed ventrally — compare reptantia