| 释义 |
‖ ictus|ˈɪktəs|
[L., = blow, stroke, thrust, f. ic-ĕre to strike, hit, smite.]
1. Pros. Stress on a particular syllable of a foot or verse; rhythmical or metrical stress. Used of Old English verse.
1752Newton Note Milton's P.R. iv. 157, I think the ictus falls better in the common reading. 1784J. B. Seale Anal. Grk. Metres (1823) 3 In the Iambus and Trochee, the Arsis (or Ictus) is invariable, being upon the long syllable of each. 1823J. Bosworth Elem. Anglo-Saxon Gram. 246 [quoting J. J. Conybeare] The ear is satisfied, not by the number of syllables, but by the recurrence of the accent, or ictus, if one may call it so. 1871Earle Philol. Eng. Tongue §621 It can hardly be a good line wherein this word [one], standing as an indefinite pronoun, receives the ictus of the metre. 1888A. H. Tolman in Publ. Mod. Lang. Assoc. III. 21 March..declares that ‘the time from each ictus to the next is the same in any section’. 1953F. P. Magoun in Speculum XXVIII. 458 The first down-beat or ictus in the off-verse does not here alliterate with the preceding on-verse.
2. Med.
a. The beat of the pulse.
b. ictus solis (Lat.): sunstroke.
1707Floyer Physic. Pulse-Watch 153 The Pulse is most properly consider'd in its Ictus, which shews the Vigor of spirits, and the Intervallum which shews the Heat of the Blood. 1811Hooper Med. Dict., Ictus, a stroke, or blow. Hence ictus solis means a stroke of the sun.
c. A stroke, seizure, or fit. Also in some mod.L. phrases.
1890Gould New Med. Dict. 204/1 Ictus, a stroke or attack of disease coming without premonition. 1890Billings Med. Dict. I. 679/1 Ictus sanguinis, apoplexy. 1908A. Church Dis. Nervous Syst. 487 Especially severe attacks of tickling in the throat, arrest of respiration, unconsciousness, and epileptic attacks have been described as ictus laryngeus. 1931I. S. Wechsler Textbk. Clin. Neurol. (ed. 2) iv. 345 The clinical course [of apoplexy] may be conveniently divided into (1) the acute apoplectic stroke or ictus, and (2) the stage of paralysis. 1939W. Haymaker tr. Bing's Textbk. Nervous Dis. xvii. 444 The most striking symptom of apoplectic stroke (ictus apoplecticus) is sudden loss of consciousness. 1961Lancet 29 July 223/1 The conscious level chosen for stratification of patients in the trial was that at twenty-four hours after the ictus. |