The outer branch of a biramous appendage (see under endopod). In the lobsters, the exopod is absent from the pereiopods, but still present in the maxillipeds where it forms an often flagellum-carrying appendage of the endopod. In most pleopods and the uropods the exopod is about as large as, or sometimes even larger than, the endopod. Opposite term: endopod.

Alternative forms for exopod : exopodite, exopods.