Usually means: Iron oxide, primarily contains iron.
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We found 10 dictionaries that define the word ferrous oxide:

General (9 matching dictionaries)
  1. ferrous oxide: Merriam-Webster
  2. ferrous oxide: Oxford Learner's Dictionaries
  3. ferrous oxide: American Heritage Dictionary of the English Language
  4. ferrous oxide: Wiktionary
  5. ferrous oxide: The Wordsmyth English Dictionary-Thesaurus
  6. ferrous oxide: Infoplease Dictionary
  7. ferrous oxide: Dictionary.com
  8. Ferrous oxide: Wikipedia, the Free Encyclopedia
  9. ferrous oxide: TheFreeDictionary.com

Computing (1 matching dictionary)
  1. ferrous oxide: Encyclopedia

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Definitions from Wiktionary (ferrous oxide)

▸ noun:  (chemistry) The chemical compound FeO, iron oxide where iron has a valence of +2.

Similar:
iron(II) oxide, ferric oxide, iron(III) oxide, iron oxide, ferrate, ferrite, red oxide, orthoferrite, iron, ferrous chloride, more...

Opposite:
non-ferrous oxide, ferric oxide, iron-free oxide

Types:
hematite, magnetite, limonite, goethite, siderite, pyrite, more...

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Similar:
iron(II) oxide, ferric oxide, iron(III) oxide, iron oxide, ferrate, ferrite, red oxide, orthoferrite, iron, ferrous chloride, more...

Opposite:
non-ferrous oxide, ferric oxide, iron-free oxide

Types:
hematite, magnetite, limonite, goethite, siderite, pyrite, more...



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