| 释义 |
▪ I. undulate, a.|ˈʌndjʊlət|
[ad. L. undulāt-us diversified as with waves, f. unda wave. Cf. Sp. undulado, F. ondulé.]
1. Furnished with wave-like markings.
1658Phillips, Undulate, Chamolet wrought, or painted like waves. 1661Lovell Hist. Anim. & Min. Isagoge, The cramp-fish,..raie undulate and oculate. 1706Phillips (ed. Kersey), Undulate, or Undulated, made in fashion of Waves, as watered Stuffs and the Grain of Wainscot.
2. Bot. and Zool. = undulated ppl. a. 1.
Also comb., as undulate-convex, undulate-serrate, etc.
a. Bot.1760J. Lee Introd. Bot. i. xii. (1765) 28 Undulate, waved, as in Gloriosa. 1821W. P. C. Barton Flora N. Amer. I. 91 Leaves..entire, but undulate and irregular on the margin. 1870Hooker Stud. Flora 305 Margins cartilaginous and undulate when dry.
b. Zool.1826Kirby & Sp. Entomol. IV. 290 Undulate,..when fasciæ, strigæ, lines, &c. curve into alternate sinuses resembling the rise and fall of waves. Ibid. 293 Undulate,..when the surface rises and falls obtusely, not in angles. 1846Dana Zooph. (1848) 167 Surface a little undulate.
▪ II. undulate, v.|ˈʌndjʊleɪt|
[ad. L. type *undulāt- (cf. prec.), ppl. stem of *undulāre, f. unda. Cf. Sp. and Pg. undular, It. ondulare, F. onduler.]
1. intr. To move in, or after the manner of, waves; to have a wave-like motion.
1664Power Exp. Philos. i. 69 The former Experiment of the Snail,..whose Animal Spirits never begin to undulate till she begin to move. 1721Bailey, To Undulate, to roll as waves do. 1796H. Hunter tr. St.-Pierre's Stud. Nat. (1799) II. 41 The..swallow is continually skimming along their surface, undulating like the waters of a lake. 1820Shelley To M. Gisborne 120 The ripe corn under the undulating air Undulates like an ocean. 1869J. Phillips Vesuv. ix. 253 The water undulates, the land vibrates.
b. transf. Of sound, etc.
1760–72H. Brooke Fool of Qual. (1809) IV. 158 An universal shout..followed and undulated after our company. 1784Cowper Task i. 175 Tall spire, from which the sound of cheerful bells Just undulates upon the list'ning ear. 1818Shelley Rosalind 833 The light serene Of smiles, whose lustre bright and soft Beneath lay undulating there.
c. To float on waves. Also fig.
1813H. & J. Smith Horace in Lond. 24 He undulates on Ocean's swell. 1891T. Hardy Tess xix, She undulated upon the thin notes [of the harp] as upon billows.
2. trans.
a. To cause to move, esp. to rise and fall, after the manner of waves.
1669Holder Elem. Speech 47 It may very well be, that Breath vocalized, i.e. vibrated or undulated, may in a different manner affect the Lips. 1725Fam. Dict. s.v. Hot-bath, Like a Fomentation, which..by gently shaking and undulating the Fibres, helps forwards those animal Motions. 1865Intell. Observ. Sept. 84 A snail-leech..attaching its suckers to the glass vessel in which it is confined, and..undulating the intervening portion of the body. 1873Leland Egypt. Sketch-Bk. 135 The first dancing of all Ghawâzi is simply moving about to the music and undulating the body.
b. To invest with the form or appearance of a wavy or rippling surface.
1730A. Gordon Maffei's Amphith. 351 The red..and yellow Coverings of the Theatre, reflected back on the Assembly of Spectators,..undulating the whole with their Colours. 1804Shaw Gen. Zool. V. 419 The body is obliquely undulated by twelve lines of the same colour. 1843tr. Custine's Empire of Czar I. 216 It is for man to build mountains, when nature has not undulated the surface of the earth.
3. intr. To present a wavy surface or outline.
1833L. Ritchie Wand. by Loire 255 The vast plain undulates in hills and valleys. 1849Ruskin Sev. Lamps v. §13. 149 There is not one of the arches the same in height as another; their tops undulate all along the wall. 1866Geo. Eliot F. Holt i, A..masculine face, with rich brown hair..undulating beside each cheek.
b. To have the effect of waves to the eye.
1888H. W. Parker Spirit of Beauty 220 Silks of changing hues that undulate like a purple sunset on a billowy sea. |