combining form of Gr. οὐρ-ά tail, occurring in many terms of comparative anatomy, etc. (of which the more important are entered in their places below), designating or relating to a posterior, caudal, or tail-like part, region, segment, or process, as urogaster, -mere, -pod, pteran, -some, -somite, -steon, sternite sbs.; urochordal, -gastric, -podal, -pyloric, -sacral, -stylar adjs.
Various other examples are entered in some recent or special Dicts, as uromeric, -platoid, -somatic, -stegal, -stege, -stegite, -sthene, -sthenic, etc.
1825. Encycl. Metrop., XVII. 595/1. Decapoda. The hinder part of the body, which Latreille calls the post-abdomen, or Urogaster, but which is usually though erroneously called the tail. [Hence in Mayne, etc.]
1842. Brande, Dict. Sci., etc., 1278. Uropterans, Uroptera,… a family of Amphipodous Crustaceans, including those in which the tail is terminated by enlarged appendages in the shape of fins.
1877. Huxley, Anat. Inv. Anim., vi. 319. A strong calcified urocardiac process.
1884. Coues, N. Amer. Birds, 114. Urosacral or false tail-bones.
1896. Calman, Deep-Sea Crustacea, 19. The outer plate of the uropod.
1898. A. S. Packard, Texi-book of Entomology, 163. We have designated the abdomen, as the urosome; the abdominal segments of insects … as uromeres, and the sternal sclerites as urosternites.
