uropod
From ZooTerms (Dictionary of Invertebrate Zoology)
uropod also uropodite (noun; Greek oura, tail; pous, foot): (Arthropoda: Crustacea) 1. In Malacostraca, an appendage of the 6th abdominal somite, fanlike or reduced or modified. 2. In Amphipoda, the last 3 pairs of abdominal appendages.
