from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of a group of widely occurring yellowish-brown to black iron oxide minerals, essentially FeO(OH)·nH2O, used as a minor ore of iron.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. any of several natural hydrous iron oxides; often a mixture of goethite and hemite with clays and manganese oxide
from the GNU version of the Collaborative International Dictionary of English
- n. Hydrous sesquioxide of iron, an important ore of iron, occurring in stalactitic, mammillary, or earthy forms, of a dark brown color, and yellowish brown powder. It includes bog iron. Also called brown hematite.
from The Century Dictionary and Cyclopedia
- n. An important iron ore which is found earthy, concretionary, or mammillary and fibrous.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a widely occurring iron oxide ore; a mixture of goethite and hematite and lepidocrocite
German Limonit, from Greek leimōn, meadow.(American Heritage® Dictionary of the English Language, Fourth Edition)