Urogastric, ū-rō-gas′trik, adj. pertaining to the posterior pair of divisions of the gastric lobe of the dorsal surface of the carapace of a crab: pertaining to the urogaster (see under Urine). [Gr. ouron, urine, gastēr, the stomach.]
Urohyal, ū-rō-hī′al, n. the tail-piece of the composite hyoid bone.—adj. pertaining to this.
Uromere, ū′rō-mēr, n. a caudal segment of an arthropod.—adj. Uromer′ic. [Gr. oura, tail, meros, part.]
Uropod, ū′rō-pod, n. any abdominal limb of an arthropod.—adj. Urop′odal. [Gr. oura, tail, pous, podos, foot.]
Uropygium, ū-rō-pij′i-um, n. the rump in birds.—adj. Uropyg′ial. [Gr. orrhos, rump, pygē, buttocks.]
Uropyloric, ū-rō-pī-lor′ik, adj. pertaining to the posterior part of the pyloric division of the stomach of the crayfish and some other crustaceans.
Urosacral, ū-rō-sā′kral, adj. pertaining to the sacrum and to the coccyx.—n. Urosā′crum.
Urosome, ū′rō-sōm, n. the terminal somatome of a vertebrate: the post-thoracic region of the body of an arthropod.—n. Urosō′mite, one of the somites of the urosome.—adj. Urosomit′ic. [Gr. oura, tail, sōma, body.]
Urostege, ū′rō-stēj, n. one of the special scales on the under side of a snake's tail—also U′rostegite.—adj. U′rostēgal. [Gr. oura, tail, stegē, a roof.]
Urosteon, ū-ros′tē-on, n. a median posterior ossification of the sternum of some birds. [Gr. oura, tail, osteon, bone.]