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

单词	hystrichosphere
释义	hystrichosphere Palæont.\|ˈhɪstrɪkəʊsfɪə(r)\| [ad. mod.L. hystrichosphæra (O. Wetzel 1933, in Palaeontographica A. LXXVIII. 32), f. Gr. ὕστριξ, ὑστριχ- porcupine + σϕαῖρα ball.] Any of numerous kinds of microscopic planktonic fossil organisms characterized by a spherical or oval shape with numerous short thin projections. 1957Q. Jrnl. Geol. Soc. CXII. 416 In the clays, dinoflagellates and hystrichospheres were abundant and formed a considerable proportion of the combustible organic matter.1963Palaeontology VI. 83 The hystrichospheres having spines closed distally exhibit an overall range in shell diameters from 5 µ to 240 µ.
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