| 释义 |
▪ I. outburst, n.|ˈaʊtbɜːst|
[out- 7.]
1. a. An act of bursting out; a violent issue; an outbreak, explosion (of feeling, fervour, indignation, etc.); a volcanic eruption.
1657Trapp Comm. Job iii. 3 They repent of their out⁓bursts. 1855Bain Senses & Int. ii. i. §12 (1864) 96 The first outburst of muscular vigour in a healthy frame. 1860Geo. Eliot Mill on Fl. iii. ii, Tom was a little shocked at Maggie's outburst. 1874L. Stephen Hours in Library (1892) I. vii. 259 This narrative is..not a volcanic outburst to shake the foundations of society.
b. Astr. A solar radio emission of great intensity and several minutes' duration which occurs in conjunction with a solar flare.
1947C. W. Allen in Monthly Notices R. Astron. Soc. CVII. 387 Besides steady noise and bursts, one can detect, rather rarely, sudden outbursts of radio noise, which last for a few minutes, fluctuating violently, and then disappear. Ibid. 394 It is this correlation between flares and outbursts that shows that an outburst has a particular physical significance. 1955Sci. Amer. June 42/3 The more common type of burst is a brief surge of intensity lasting only a few seconds; we call this a ‘radio flash’. During a week of intense activity on the sun, there may be 100 flashes. The second type, far less frequent, is a burst lasting several minutes; this is called an ‘outburst’. The outbursts..come only during a solar flare. 1971J. S. Hey Radio Universe v. 104 Large flares are often accompanied by very intense outbursts of radiation on metre wavelengths lasting between about 5 and 30 min. In a classification of radio bursts according to their characteristic properties, these outbursts have been designated as Type II radio bursts. Ibid. 108 The microwave outbursts, often called microwave Type IV, sometimes accompany large flares and are particularly interesting because of their association with solar cosmic rays.
2. The emergence of a rock or stratum at the surface; an outcrop; = outbreak n. 2.
1708J. C. Compleat Collier (1845) 10 There is an Out-burst or an appearance above ground of some vein of Coal. 1822J. Flint Lett. Amer. 60 The strata being horizontal, and the out-burst of the coal about the middle-steep of the hill.
3. Comb. outburst-bank, the middle part of a sea-embankment.
1852J. Wiggins Embanking 25 The outburst bank, 5 feet high and 8 feet wide at top, and with a slope of but 1½ to 1, because this part of the bank will have to sustain but a transient stress from the top of the tide. Ibid. 123 The tide will not flow more than 10 feet at ordinary springs, in which case the main bank will not be more than 6 feet in height, and the outburst and swash banks 4 feet more.
▪ II. outˈburst, v. rare.
Forms: see out adv. and burst v.
[out- 14. (In ME. usually two words, now poetic.)]
intr. To burst out.
13..Cursor M. 1088 (Gött.) A syhing of his hert vte brast. c1400Destr. Troy 8045 That the blode outbrast, & on brest light. c1430Freemasonry 761 Suche worde myȝht ther outberste That myȝht make the sytte yn evel reste. 1568Satir. Poems Reform. ix. 124 Their boiling malice that lay hid In rageing sort outbrast. 1855Browning Saul xiii, Then safely outburst The fan-branches all round. |