from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun 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.
- noun chemistry The chemical compound Fe2O3,
iron oxidewhere iron has a valence of +3. IUPAChas deprecatedthis term in favor of iron(III) oxide.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a red oxide of iron
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