单词 | clastic |
释义 | clasticadj. a. Geology. Consisting of broken pieces of older rocks. ΘΚΠ the world > the earth > structure of the earth > constituent materials > rock > composite rock > [adjective] > fragmentary fragmentary1832 pyroclastic1862 clastic1877 fragmental1882 cataclastic1887 autoclastic1891 siliciclastic1961 volcaniclastic1961 1877 A. H. Green Geol. for Students: Physical Geol. (ed. 2) 93 Rocks..made up of broken pieces of pre-existing rocks are spoken of as Clastic..or Derivative. 1879 F. Rutley Study of Rocks xiv. 299 Among the fragmentary or clastic rocks. b. Anatomy. Of a model: composed of a number of separable pieces; pertaining to such a model. ΘΚΠ the world > life > biology > laboratory analysis > apparatus > [adjective] clastic1873 1873 P. G. Hamerton Intellect. Life iii. ix. 117 The clastic anatomical man-model of the ingenious doctor Auzoux. 1881 New Sydenham Soc. Lexicon Clastic, fragile; separable into fragments. Term applied to models which can be taken to pieces. This entry has not yet been fully updated (first published 1889; most recently modified version published online March 2022). > see alsoalso refers to : -clasticcomb. form < adj.1873 see also |
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