parapodium, n. [NL., fr. Gr. para` beside + , dim. of foot.].
One of the lateral appendages of an annelid; -- called also foot tubercle. [1913 Webster]
" They may serve for locomotion, respiration, and sensation, and often contain spines or setæ. When well developed, a dorsal part, or notopodium, and a ventral part, or neuropodium, are distinguished."