| 单词 | pyrophyllite |
| 释义 | pyrophyllite[ pahy-ruh-fil-ahyt, pahy-rof-uh-lahyt ] / ˌpaɪ rəˈfɪl aɪt, paɪˈrɒf əˌlaɪt / nounMineralogy. a phyllosilicate, AlSi2O5(OH), usually having a white or greenish color, and occurring in either foliated or compact masses, the latter variety being used like soapstone. Origin of pyrophylliteFirst recorded in 1820–30, pyrophyllite is from the German word Pyrophyllit; so called because it exfoliates when heated. See pyro-, -phyll, -ite1 Words nearby pyrophyllitepyrophoric, pyrophosphatase, pyrophosphate, pyrophosphoric acid, pyrophotometer, pyrophyllite, pyroracemic acid, pyrosis, pyrostat, pyrosulfate, pyrosulfuric Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for pyrophyllite
British Dictionary definitions for pyrophyllitepyrophyllite / (ˌpaɪrəʊˈfɪlaɪt) / nouna white, silvery, or green micaceous mineral that consists of hydrated aluminium silicate in monoclinic crystalline form and occurs in metamorphic rocks. Formula: Al 2 Si 4 O 10 (OH) 2 Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 |
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