英语词汇“siliceous”的英英意思、用法、释义、翻译、读音、例句、短语、词组、英语词典-本地帮

单词

siliceous

释义

siliceous, a.|sɪˈlɪʃəs|
[ad. L. siliceus, f. silic-, silex flint: cf. F. siliceux and silicious a.]
Containing or consisting of silica; of the nature of silica: a. Of mineral substances.
1656Blount Glossogr., Siliceous,..of or pertaining to flint, flinty.1783Withering tr. Bergman's Mineral. 59 Siliceous Earth.1794Sullivan View of Nature I. 430 What some call vitrescent earths, others denominate siliceous.1813Sir H. Davy Agric. Chem. (1814) 194 Siliceous sandstone, which is composed of fine quartz or sand, united by a siliceous cement.1851Richardson Geol. xii. 380 The upper greensand, in some localities,..consists of a sharp siliceous sand.1879D. M. Wallace Australasia iv. 71 They consist of..sandy ironstone, or even hard siliceous rock enclosing quartz pebbles.
b. Of plant or animal structures.
1813Sir H. Davy Agric. Chem. (1814) 57 The siliceous epidermis..protects the bark from the action of insects.1845Darwin Voy. Nat. i. 5 This dust consists..of infusoria with siliceous shields, and of the siliceous tissue of plants.1868Carpenter in Sci. Opin. 174/2 Imbedded in this mud there came up an extraordinary collection of siliceous sponges.

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