pyrolusite

[ pahy-ruh-loo-sahyt, pahy-rol-yuh-sahyt ]

/ ˌpaɪ rəˈlu saɪt, paɪˈrɒl yəˌsaɪt /

noun

a common mineral, manganese dioxide, MnO2, the principal ore of manganese, used in various manufactures, as a decolorizer of brown or green tints in glass, and as a depolarizer in dry-cell batteries.

Origin of pyrolusite

1820–30; pyro- + Greek loûs(is) washing + -ite¹

Words nearby pyrolusite

pyrokinesis, pyroligneous, pyroligneous acid, pyroligneous alcohol, pyrolize, pyrolusite, pyrolyse, pyrolysis, pyromagnetic, pyromancy, pyromania

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for pyrolusite

Heated in an ignition tube yields water in abundance, otherwise it behaves like pyrolusite.
The Elements of Blowpipe Analysis|Frederick Hutton Getman
Its dioxide (pyrolusite) has been known from very early times, and was at first mistaken for a magnetic oxide of iron.
Encyclopaedia Britannica, 11th Edition, Volume 17, Slice 5|Various
As an ore of manganese it is much less abundant than pyrolusite or psilomelane.
Encyclopaedia Britannica, 11th Edition, Volume 17, Slice 5|Various
Binoxide of manganese (Molecule, Mn.O2), is found native as pyrolusite or polyanite.
British Manufacturing Industries|L. Arnoux

How does pyrolusite effect the decolorizing of glass containing iron?
An Elementary Study of Chemistry|William McPherson

British Dictionary definitions for pyrolusite

pyrolusite

/ (ˌpaɪrəʊˈluːsaɪt) /

noun

a blackish fibrous or soft powdery mineral consisting of manganese dioxide in tetragonal crystalline form. It occurs in association with other manganese ores and is an important source of manganese. Formula: MnO 2

Word Origin for pyrolusite

C19: from pyro- + Greek lousis a washing + -ite 1, from its use in purifying glass

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

单词	pyrolusite
释义	pyrolusite [ pahy-ruh-loo-sahyt, pahy-rol-yuh-sahyt ] / ˌpaɪ rəˈlu saɪt, paɪˈrɒl yəˌsaɪt / noun a common mineral, manganese dioxide, MnO2, the principal ore of manganese, used in various manufactures, as a decolorizer of brown or green tints in glass, and as a depolarizer in dry-cell batteries. Origin of pyrolusite 1820–30; pyro- + Greek loûs(is) washing + -ite¹ Words nearby pyrolusite pyrokinesis, pyroligneous, pyroligneous acid, pyroligneous alcohol, pyrolize, pyrolusite, pyrolyse, pyrolysis, pyromagnetic, pyromancy, pyromania Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for pyrolusite Heated in an ignition tube yields water in abundance, otherwise it behaves like pyrolusite. The Elements of Blowpipe Analysis\|Frederick Hutton Getman Its dioxide (pyrolusite) has been known from very early times, and was at first mistaken for a magnetic oxide of iron. Encyclopaedia Britannica, 11th Edition, Volume 17, Slice 5\|Various As an ore of manganese it is much less abundant than pyrolusite or psilomelane. Encyclopaedia Britannica, 11th Edition, Volume 17, Slice 5\|Various Binoxide of manganese (Molecule, Mn.O2), is found native as pyrolusite or polyanite. British Manufacturing Industries\|L. Arnoux How does pyrolusite effect the decolorizing of glass containing iron? An Elementary Study of Chemistry\|William McPherson British Dictionary definitions for pyrolusite pyrolusite / (ˌpaɪrəʊˈluːsaɪt) / noun a blackish fibrous or soft powdery mineral consisting of manganese dioxide in tetragonal crystalline form. It occurs in association with other manganese ores and is an important source of manganese. Formula: MnO 2 Word Origin for pyrolusite C19: from pyro- + Greek lousis a washing + -ite 1, from its use in purifying glass 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
随便看	ammonio- ammonioferric oxalate ammonite ammonites ammonium ammonium acetate ammonium bicarbonate ammonium bifluoride ammonium binoxalate ammonium carbamate ammonium carbonate ammonium chloride ammonium cyanate ammonium hydroxide ammonium ion ammonium lactate ammonium nitrate ammonium phosphate ammonium purpurate ammonium salt ammonium selenate ammonium stearate ammonium sulfate ammonium sulphate ammonium thiocyanate