| 释义 |
rapidity|rəˈpɪdɪtɪ|
[ad. L. rapiditāt-em, f. rapidus: see rapid and -ity. Cf. F. rapidité (1611 in Cotgr.).]
The quality of being rapid; celerity; velocity; swiftness of motion or action.
[1616Bullokar Eng. Exp., Rapiditie, a snatching, a catching.] 1654Butler Elephant in Moon 301 The rapidity Of both their motions cannot be But so prodigiously fast [etc.]. 1701Brand Descr. Orkney (1883) 73 The quickness and rapidity of the Tide. 1783Watson Philip III, ii. (1839) 123 He advanced towards them with the utmost rapidity. 1871Tyndall Fragm. Sci. (1879) I. xxi. 492 There are other actions which far transcend in rapidity that of the rifle-bullet.
pl.a1774Goldsm. Surv. Exp. Philos. (1776) I. 337 The water at the surface of a river, and that at its bottom, are often found to have very different rapidities. 1867Tyndall Sound i. (1871) 4 It is conveyed with different rapidities in three different directions. |