Search Result for "manganite": 
Wordnet 3.0

NOUN (1)

1. a black mineral consisting of basic manganese oxide; a source of manganese;


The Collaborative International Dictionary of English v.0.48:

Manganite \Man"ga*nite\, n. 1. (Min.) One of the oxides of manganese; -- called also gray manganese ore. It occurs in brilliant steel-gray or iron-black crystals, also massive. [1913 Webster] 2. (Chem.) A compound of manganese dioxide with a metallic oxide; so called as though derived from the hypothetical manganous acid. [1913 Webster]
WordNet (r) 3.0 (2006):

manganite n 1: a black mineral consisting of basic manganese oxide; a source of manganese