%urbina%

a. [ Naso- + turbinal. ] (Anat.) Connected with, or near, both the turbinal and the nasal bones; as, the nasoturbinal bone, made up of the uppermost lammelae of the ethmoturbinal, and sometimes united with the nasal. -- n. The nasoturbinal bone. [ 1913 Webster ]

a. [ Pseudo- + turbinal. ] (Anat.) See under Turbinal. [ 1913 Webster ]

a. [ See Turbary. ] Of or pertaining to peat, or turf; of the nature of peat, or turf; peaty; turfy. Sir. W. Scott. [ 1913 Webster ]

a. [ L. turbo, turben, -inis, a top, whirl. ] (Anat.) Rolled in a spiral; scroll-like; turbinate; -- applied to the thin, plicated, bony or cartilaginous plates which support the olfactory and mucous membranes of the nasal chambers. [ 1913 Webster ]

☞ There are usually several of these plates in each nasal chamber. The upper ones, connected directly with the ethmoid bone, are called ethmoturbinals, and the lower, connected with the maxillae, maxillo-turbinals. Incurved portions of the wall of the nasal chamber are sometimes called pseudoturbinals, to distinguish them from the true turbinals which are free outgrowths into the chambers. [ 1913 Webster ]

n. (Anat.) A turbinal bone or cartilage. [ 1913 Webster ]

v. i. To revolve or spin like a top; to whirl. [ R. ] [ 1913 Webster ]

{ } a. [ L. turbinatus, fr. turbo, turben, turbinis, a whirl, top. ] 1. Whirling in the manner of a top. [ 1913 Webster ]

A spiral and turbinated motion of the whole. Bentley. [ 1913 Webster ]

2. (Bot.) Shaped like a top, or inverted cone; narrow at the base, and broad at the apex; as, a turbinated ovary, pericarp, or root. [ 1913 Webster ]

3. (Anat.) Turbinal. [ 1913 Webster ]

4. (Zool.) Spiral with the whorls decreasing rapidly from a large base to a pointed apex; -- said of certain shells. [ 1913 Webster ]