Amphipoda

 
Pronunciation: /ˌamfɪˈpəʊdə/

plural noun

Zoology
  • an order of chiefly marine crustaceans with a laterally compressed body and a large number of leg-like appendages.

Origin:

modern Latin (plural), from amphi- 'of both kinds' (because some legs are specialized for swimming and some for feeding) + Greek pous, pod- 'foot'