| 释义 |
rostral, a. (n.)|ˈrɒstrəl|
Also 5 rostrale, 6 rostralle.
[ad. late L. rostrāl-is, f. L. rostr-um beak: see -al1.]
†1. rostral bone, the coracoid process. Also absol. as n. Obs.
c1400Lanfranc's Cirurg. 156 For to fastne þe schuldre, þis boon rostral is putt in maner of a wegge. Ibid. (Addit. MS.), Two smale bonys whiche beþ y-clepyde rostralis. 1541R. Copland Guydon's Quest. Chirurg. G j, [One branch] byndeth & closeth these two addycyons called Rostralles.
2. Of columns, pillars, etc.: Adorned with the beaks of galleys or with representations of these. Also transf.
rostral crown, a golden crown, adorned with figures of ships' beaks, awarded to the person who first boarded an enemy's ship.
1709Addison Tatler No. 161 ⁋7 The Other wore a rostral Crown upon her Head. 1734tr. Rollin's Anc. Hist. (1827) I. ii. 377 A rostral pillar was erected in his honour. c1800E. C. Knight Autobiogr. I. 118 At the extremity of the saloon..was a rostral column, on which were inscribed the names of the heroes of the Nile. 1860Motley Netherl. (1868) I. v. 258 The Genoese merchants had erected two rostral columns. 1883Cent. Mag. Nov. 78/2 Its fountains, obelisk, allegorical statues of chief French cities, rostral and other lamp-posts.
3. Zool. Of or pertaining to, situated in or upon, the rostrum.
1826Kirby & Sp. Entomol. IV. xlvi. 316 Rostral.., when seated on a rostrum. 1854Orr's Circ. Sci., Org. Nat. I. 271 The compressed rostral teeth of the saw-fish are deeply implanted in sockets. 1880Günther Fishes 335 The rostral cartilage is produced into an exceedingly long, flat lamina.
4. Anat. (See quot. 1975.)
1894Amer. Naturalist XXVIII. 374 The two ends of the principal axis are respectively ‘rostral’ instead of ‘cephalic’ or ‘oral’ or ‘proral’..and..‘caudal’ [according to Schulze]. Ibid. 375 Among Ascidia.. there is perhaps a rostral extremity, but there is no caudal extremity in adults. 1953Brit. Jrnl. Psychol. XLIV. 184 The procedures employed were..transorbital leucotomy and thermocoagulation of the cerebral cortex in the rostral portion of the frontal lobes. 1954T. L. Peele Neuroanat. Basis Clin. Neurol. iv. 39/2 Running transversely across the rostral end of the cerebral peduncles are the optic tracts. 1975E. Gardner et al. Anatomy (ed. 4) i. 5/2 Rostral means nearer the ‘front end’, which is taken to be the hypophysical area in the early embryo and the region of the nose and mouth in post-embryonic life.
Hence ˈrostrally adv., towards the rostral part.
1936Jrnl. Anat. LXX. 208 Sagittal serial sections show that rostrally it runs into continuity with the medial preoptic nucleus. 1954T. L. Peele Neuroanat. Basis Clin. Neurol. iv. 38/1 Beginning at the caudal point of transection and proceeding rostrally, the following visible divisions can be made: medulla, pons,..and cerebral hemispheres. 1970Brain XCIII. 42 Most of the degeneration is a little more rostrally situated than in the preceding experiment. 1978C. Reid Primer Human Neuroanat. xvi. 149 A larger area of the reticular formation facilitates or augments reflexes at lower levels and this area extends rostrally through the pons and mid-brain and into the diencephalon. |