| 释义 |
rejuvenate, v.|rɪˈdʒuːvɪneɪt|
[irreg. f. re- + L. juvenis young, perh. after F. rajeunir.]
1. trans. To restore to youth; to make young or fresh again. Also absol.
1807W. Taylor in Robberds Mem. (1843) II. 210 It will also rejuvenate the people. 1822W. Irving Braceb. Hall II. 17 He..had the air of an old bachelor trying to rejuvenate himself. 1862R. H. Patterson Ess. Hist. & Art 89 The action of the soul upon its corporeal shrine (rejuvenating it with joy, depressing it with grief). 1881Stevenson Virg. Puerisque 156 He will pray for Medea: when she comes, let her either rejuvenate or slay.
2. Geol. To restore to a condition characteristic of a younger landscape.
1903H. Le R. Fairchild Le Conte's Elements Geol. (ed. 5) ii. 23 If the land area be lifted up the graded streams are rejuvenated—that is, their grade and power are increased. 1944A. Holmes Princ. Physical Geol. xi. 195 When a river that has already established a flood-plain is rejuvenated, it cuts through its own deposits into the underlying rocks. 1954W. D. Thornbury Princ. Geomorphol. vi. 143 During the low sea levels on the glacial ages streams presumably were rejuvenated in their lower courses.
Hence reˈjuvenated, -ating, ppl. adjs. Also rejuveˈnation; reˈjuvenator.
1834Lytton Pompeii i. vii, All the zest and freshness of rejuvenated life. 1871G. H. Napheys Prev. & Cure Dis. i. ix. 305 Rejuvenation in old age. 188019th Cent. VII. 275, I believe in the rejuvenation of worn-out institutions. 1885L'pool Daily Post 4 Feb. 4/4 The only rejuvenating potion for the country to quaff. 1889Lancet 15 June 1193/2 A great beautifier and rejuvenator of the complexion. 1936Geogr. Jrnl. LXXXVII. 20 Before rejuvenation the river had developed an open mature valley in marked contrast to its present rugged canyon. 1954W. D. Thornbury Princ. Geomorphol. vi. 142 Mature or old-age topography is likely to have superposed upon it youthful features as a result of rejuvenation. 1969G. C. Dickinson Maps & Air Photographs xiii. 209 If, for reasons such as rise of the land, fall in sea level, or glacial overdeepening of the main valley, a river begins to cut down into its valley floor, a rejuvenation head will form at the upper limits of this downcutting, working its way progressively upstream. 1970R. J. Small Study of Landforms iii. 105 In geologically active areas (such as New Zealand) it is possible that both fault- and fault-line scarps exist together. Indeed, it has been suggested that what are termed ‘composite’ and ‘rejuvenated’ scarps may be developed in these circumstances. 1971Nature 19 Feb. 539/1 Further local rejuvenations of the main graben and step faults continued until mid-Pleistocene times, deepening the Lake Naivasha and Lake Natron sectors. |