We found 19 dictionaries that define the word iron oxide:

General (9 matching dictionaries)

1. iron oxide: Merriam-Webster
2. iron oxide: American Heritage Dictionary of the English Language
3. iron (III) oxide, iron (III) oxide, iron oxide: Collins English Dictionary
4. iron-oxide, iron oxide: Wordnik
5. iron(II) oxide, iron(III) oxide, iron oxide: Wiktionary
6. iron oxide: Dictionary.com
7. Iron(II) oxide, Iron(III) oxide, Iron (II) oxide, Iron (III) oxide, Iron oxide: Wikipedia, the Free Encyclopedia
8. iron oxide: FreeDictionary.org
9. iron oxide: TheFreeDictionary.com

Business (1 matching dictionary)

10. Construction Term Glossary (No longer online)

Computing (2 matching dictionaries)

11. iron oxide: CCI Computer
12. Iron(II) oxide, Iron(II,III) oxide, Iron(III) oxide, Iron-oxide, iron oxide: Encyclopedia

Medicine (2 matching dictionaries)

13. iron oxide: Merriam-Webster Medical Dictionary
14. Iron-oxide, iron oxide: Medical dictionary

Miscellaneous (1 matching dictionary)

15. Encyclopedia of Graphic Symbols (No longer online)

Science (1 matching dictionary)

16. Iron Oxide: Eric Weisstein's World of Chemistry

Slang (1 matching dictionary)

17. iron oxide: Urban Dictionary

Tech (2 matching dictionaries)

18. Illustrated Glass Dictionary (No longer online)
19. Schlumberger Oilfield Glossary (No longer online)

Definitions from Wiktionary (iron oxide) ▸ noun:  (chemistry) Either of two compounds obtained by the reaction of oxygen on iron. Generally known as rust when hydrated. Similar: iron(II) oxide, iron(III) oxide, ferrous oxide, ferric oxide, red oxide, goethite, ferrite, iron, iron bloom, ferrate, more... Opposite: reducer, deoxidizer, reducing agent Phrases: anhydrous iron oxide, Iron oxide nanoparticle, Iron oxide copper gold ore deposits, more... ▸ Words similar to iron oxide ▸ Usage examples for iron oxide ▸ Idioms related to iron oxide ▸ Wikipedia articles (New!) ▸ Words that often appear near iron oxide ▸ Rhymes of iron oxide ▸ Invented words related to iron oxide