Rhipicephalus

(ri-pis-ef’al-us) [Gr. Jewts fan + κεφαλή head]. A genus of cattle-ticks, species of which are the agents in transmitting the piro- plasma of cattle fever and other disease. Β. annuls’ tus, transmits the Piroplus'’ma bigem’- inum of Texas fever. BR. appendicula’tus, 1 brown tick, transmits the Piroplas'ma par'vum of East African Coast fever. B. bur’sa, transmits the Piroplas'ma o’vis, which causes icterohematuria of sheep. Β. si’mus, the black pitted tick, a species which transmits the Ptroplus’ma par’vum of East African Coast fever. rhizagra (ri-zag’rah) (Gr. ῥίζα root + seizure}. An ancient forceps for the roots of teeth. rhizodontropy (ri-zo-don’tro-pe) [Grt. ῥέξζα root + ὀδούς tooth + rpown pivot]. The fixation of an artificial crown upon the natural root of a tooth. rhigzodontrypy (ri-zo-don’trip-e) (Gr. ῥίξζα root + ὀδούς tooth + τρύπη hole]. The perforation of the root of a tooth for the discharge of morbid fluids. rhizoid, rhizoidal (ri’zoid, ri-zoi’dal) (Gr. ῥίζα a root + εἶδος form]. Root-like; resembling a root. rhizome (ri-zdm’) (L. rhizo’ma; Gr. ῥίζωμα rootstem]. The subterraneous root-stalk of a plant. rhizomelic (ri-zo-mel’ik) (Gr. fifa toot + μέλος limb]. Pertaining to or involving the hipand shoulder-joints. rhisoneure (ri‘zo-nir) [Gr. lta root + νεῦρον nerve]. A nerve-cell which forms a nerve-root.