pyrolusite
Kelime Anlamı :

1. piroliz.
2. piroluzit.
3. piroluzit (manganez dioksit minerali).
4. camcılıkta kullanılan manganez dioksid.
Tanımlar :
1. A soft, black to dark gray mineral, MnO2, the commonest and most important secondary ore of manganese.
from The American Heritage® Dictionary of the English Language, 4th Edition
1. A dark coloured mineral, consisting of manganese dioxide (MnO2), that is an important ore of manganese.
from Wiktionary, Creative Commons Attribution/Share-Alike License
1. manganese dioxide, a mineral of an iron-black or dark steel-gray color and metallic luster, usually soft. pyrolusite parts with its oxygen at a red heat, and is extensively used in discharging the brown and green tints of glass (whence its name).
from the GNU version of the Collaborative International Dictionary of English
1. native manganese dioxid (MnO2), a common ore of manganese, occurring crystallized and massive, of a gray-color and metallic luster.
from The Century Dictionary and Cyclopedia
1. a mineral consisting of manganese dioxide; an important source of manganese
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.