| 释义 |
‖ raˈpilli
[It., pl. of rapillo.]
Small fragments of pumice-stone. Cf. lapilli.
1809Wilson Hist. Mountains II. 620 The first ejections..were simply ashes, pieces of pumice stone and rapilli. 1871C. Kingsley At Last I. ii. 46 Soils of still unexhausted fertility, save when—as must needs be in a volcanic region—patches of mere rapilli and scoriæ occur. 1882A. Geikie Text-bk. Geol. 162 Lapilli (rapilli).—Ejected fragments of lava. |