ferrous
/'ferəs/
Definition
- Adjective:
- Relating to or containing iron: The word "ferrous" describes something that is related to iron or contains iron in its composition. It is primarily used in chemistry and metallurgy to denote iron in its +2 oxidation state (Fe²⁺).
Usage
The adjective "ferrous" is used to specify that a material, compound, or ion contains iron, particularly in its divalent form. It is a technical term common in scientific contexts. - It is typically used attributively (before a noun). - It often contrasts with "ferric," which refers to iron in its +3 oxidation state (Fe³⁺).
Examples
- Attributive use:
- The magnet attracted the ferrous metal. (The magnet was drawn to the metal containing iron.)
- This water stain is caused by ferrous ions in the pipe. (The discoloration is due to dissolved iron (Fe²⁺) from the pipe.)
- The geologist identified the rock as a ferrous mineral. (The geologist determined the rock was a mineral containing iron.)
Advanced Usage
- "Ferrous alloy": An alloy where iron is the primary constituent (e.g., steel).
- Stainless steel is a common ferrous alloy.
- "Ferrous sulfate": A specific chemical compound containing iron(II), often used as a dietary supplement or in industrial processes.
- Ferrous sulfate is used to treat iron deficiency anemia.
- "Non-ferrous": A term used to describe metals that do not contain iron as a principal element (e.g., copper, aluminum, gold).
- Recycling centers separate ferrous and non-ferrous metals.
Variants and Related Words
- Ferric (adj): Pertaining to or containing iron, especially with a +3 oxidation state (Fe³⁺).
- Ferric oxide is commonly known as rust.
- Ferrousness (n, rare): The quality or state of being ferrous.
- Ferrite (n): A ceramic compound consisting of iron oxide combined with other metals; also a form of pure iron in some steels.
Synonyms
- Iron-containing: Having iron as a component.
- Iron(II): The specific chemical designation for the ferrous state (used in scientific nomenclature).
Antonyms
- Non-ferrous: Not containing iron.
- Ferric: Containing iron in the +3 oxidation state (this is a contrasting term rather than a strict antonym in all contexts).
Adjective
-
of or relating to or containing iron
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