| 单词 |
uncinate |
| 释义 |
uncinate, a. and n.|ˈʌnsɪnət|
[ad. L. uncīnātus, f. uncīn-us hook. Hence also It. uncinato.]
A. adj. Hooked; furnished with hooks; unciform, uncinated:
a. Bot.
1760J. Lee Introd. Bot. i. xiv. (1765) 36 Uncinate, hooked. 1830Lindley Nat. Syst. Bot. 58 Flowers in terminal and lateral racemes, covered with uncinate hairs. 1870Hooker Stud. Flora 375 Grasswrack;.. embryo large, ovoid, with a small uncinate subulate plumule.
b. Anat. and Zool. spec. in uncinate gyrus, the hook-shaped anterior part of the hippocampus involved in the perception of olfactory stimuli.
1826Kirby & Sp. Entomol. xlvi. IV. 322 Antennæ. Uncinate (Uncinatæ), when their apex is incurved so as to form a kind of hook. 1852Dana Crust. i. 191 The moveable finger being very strongly uncinate. 1883Gray's Anat. (ed. 10) 487 The uncinate gyrus extends from the posterior extremity of the hemisphere to the fissure of Sylvius. 1884Coues N. Amer. Birds 142 These ‘sacral ribs’ are furthermore distinguished by being devoid of the epipleural or uncinate processes. 1980Gray's Anat. (ed. 36) 999/1 The tail [of the uncinate gyrus] separates the rest of the inferior surface of the uncus into an anterior uncinate gyrus and a posterior intralimbic gyrus.
c. Involving or affecting the uncinate gyrus: applied to a type of epileptic fit in which hallucinatory sensations of taste and smell are experienced.
1899J. H. Jackson in Lancet 14 Jan. 79/2 There is very often the Dreamy State in cases of this group of epileptic fits—the Uncinate Group. 1948A. Brodal Neurol. Anat. x. 338 An uncinate attack may be followed by an ordinary epileptic fit, in which case the uncinate attack represents an aura. 1974E. Niedermeyer Compendium of Epilepsies v. 109 In human epileptic conditions, Jackson's term of ‘uncinate epilepsy’ corresponds with amygdaloid insular seizure manifestations.
B. n. An uncinate process.
1891Cent. Dict. 1903Proc. Zool. Soc. Lond. 17 Mar. 274 The third pair [of ribs] always bear uncinates. Ibid., The uncinates are broad and strong. |
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