| 单词 | psilomelane |
| 释义 | psilomelane[ sahy-lom-uh-leyn ] / saɪˈlɒm əˌleɪn / nouna common mineral consisting of a mixture of pyrolusite and other oxides of manganese, usually found in black, rounded masses: an ore of manganese. Origin of psilomelane1825–35; <Greek psīló(s) bare, smooth + mélan, neuter of mélas black Words nearby psilomelanepsid, psig, psilanthropism, psilocin, psilocybin, psilomelane, psilosis, P-sinistrocardiale, psi particle, psi phenomenon, PSIS Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for psilomelane
British Dictionary definitions for psilomelanepsilomelane / (sɪˈlɒmɪˌleɪn) / nouna common black to grey secondary mineral consisting of hydrated basic oxide of manganese and barium: a source of manganese. Formula: BaMn 9 O 16 (OH) 4Also called: romanicite Word Origin for psilomelaneC19: from Greek psilos bare + melas black 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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