English Dictionary: segmental | by the DICT Development Group |
2 results for segmental | |
From WordNet (r) 3.0 (2006) [wn]: | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Segmental \Seg*men"tal\, a. 1. Relating to, or being, a segment. 2. (Anat. & Zo[94]l.) (a) Of or pertaining to the segments of animals; as, a segmental duct; segmental papill[91]. (b) Of or pertaining to the segmental organs. {Segmental duct} (Anat.), the primitive duct of the embryonic excretory organs which gives rise to the Wolffian duct and ureter; the pronephric duct. {Segmental organs}. (a) (Anat.) The embryonic excretory organs of vertebrates, consisting primarily of the segmental tubes and segmental ducts. (b) (Zo[94]l.) 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}. {Segmental tubes} (Anat.), the tubes which primarily open into the segmental duct, some of which become the urinary tubules of the adult. |