iron (iii) oxide

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Definition of iron (iii) oxide words

noun iron (iii) oxide a red crystalline insoluble oxide of iron that occurs as haematite and rust and is made by heating ferrous sulphate: used as a pigment and metal polish (jeweller's rouge), and as a sensitive coating on magnetic tape. Formula: Fe2O3 0

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A common word. It’s meaning is known to most children of preschool age. About 93% of English native speakers know the meaning and use the word.

Most Europeans know this English word. The frequency of it’s usage is somewhere between "mom" and "screwdriver".

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