[ 'amfɪpɒd ]
■ noun Zoology a crustacean of the chiefly marine order Amphipoda, having a laterally compressed body and a large number of leg-like appendages.
Origin
from mod. L. Amphipoda , from amphi- 'of both kinds' (because some legs are specialized for swimming and some for feeding) + Gk pous , pod- 'foot'.