laemodipoda

from The Century Dictionary.

• noun An order of edriophthalmous crustaceans, related to the amphipods, by some made a group of Amphipoda.

from the GNU version of the Collaborative International Dictionary of English.

• noun plural (Zoöl.) A division of amphipod Crustacea, in which the abdomen is small or rudimentary and the legs are often reduced to five pairs. The whale louse, or Cyamus, and Caprella are examples.