‖ cingulum
(ˈsɪŋgjuːləm)
The Latin word for ‘girdle, belt’ [f. root of cingĕre to gird], occasionally used as a technical term for a. The girdle of a priest's alb. b. A surgical cincture or girdle; also the part of the body round which a girdle is worn, the waist. c. Anat. A band of dental substance surrounding the base of the crown of the tooth in some animals. d. Zool. The transverse series of bony bands in the armour of the armadillo. e. The clitellum or band of higher-coloured rings in the body of earthworms. f. Bot. (See quot. 1845.) g. Anat. A long curved bundle of association fibres lying within the cingulate gyrus of the brain and connecting the paraterminal and parahippocampal gyri.
| 1845 Florist's Jrnl. VI. 227 Cingulum, that portion of a plant immediately between the stem and the roots, the neck. 1847 Craig, Cingulum, in Zoology, a term applied to the neck of a tooth, or that constriction which separates the crown from the fang. 1856–8 W. Clark Van der Hoeven's Zool. I. 231 Clitellum or cingulum, a tumid fleshy glandular zone. 1872 Mivart Elem. Anat. 264 A ‘band’ of dental substance (termed the cingulum) may surround the tooth. 1877 Coues Fur Anim. vii. 205 A simple conical cusp, two-rooted, with..a well-marked cingulum. 1877 Huxley Anat. Inv. An. v. 221 Cingulum or clitellum. 1882 Quain's Elem. Anat. (ed. 9) II. 356 (heading) Fibres of the gyrus fornicatus; fillet of the corpus callosum (Mayo); cingulum. 1894 D. J. Cunningham Pract. Anat. II. 529 If the deep surface of the callosal convolution which has been torn away be examined, a large bundle of longitudinally directed fibres will be noticed embedded in its substance. This is the cingulum. 1902 ― Text-bk. Anat. 548 The cingulum..lies under cover of the callosal gyrus. 1969 [see cingulate a.]. |