from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A dark red compound, Fe2O3, occurring naturally as hematite ore and rust and used in pigments and metal polishes and on magnetic tapes.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The chemical compound Fe2O3, iron oxide where iron has a valence of +3. IUPAC has deprecated this term in favor of iron(III) oxide.
from the GNU version of the Collaborative International Dictionary of English
- adj. sesquioxide of iron, Fe2O3; hematite. See Hematite.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a red oxide of iron
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