“sesquioxide”

The following 2 entries include the term sesquioxide.

chromium sesquioxide

noun

: chromic oxide

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manganese sesquioxide

noun

: a compound Mn2O3 obtained as a black powder by heating manganese dioxide or manganous salts in air

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  • any of a genus helianthus especially h annuus of new world composite plants with large yellow rayed flower heads bearing edible seeds that yield an edible oil
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