“ripple、mark”的英文意思_释义_用法

单词

ripple-mark

释义

ˈripple-mark
[f. ripple n.³]
A wavy surface, line, or ridge on sand, mud, or rock, formed by the action of waves or the wind, or by both. Chiefly Geol.
1833Lyell Princ. Geol. Index. III. 102 Ripple marks formed by the winds on dunes.1854Bakewell's Geol. 41 The ripple marks of the sea on the shore are very frequently preserved.1888Jrnl. Derbysh. Archaeol. Soc. X. 7 The ripple-marks, rain-pittings and footprints so well known in certain sandstones.
fig.1876Lowell Among my Bks. Ser. ii. 243 The very ripple-marks on the remotest shores of being.
So ˈripple-marked a. Also transf.
1841Penny Cycl. XX. 19/1 We find ripple-marked strata among the rocks of every geological age.1898Allbutt's Syst. Med. V. 919 ‘Ripple-marked’ thickening of the endocardium due to the strain of aortic regurgitation.

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