Segmental organs

(Anat.) The embryonic excretory organs of vertebrates, consisting primarily of the segmental tubes and segmental ducts
(Zool.) The tubular excretory organs, a pair of which often occur in each of several segments in annelids. They serve as renal organs, and often, also, as oviducts and sperm ducts. See Illust. under Sipunculacea.

See also: Segmental, Segmental