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Rareopals
The correct spelling is opals.
How to pronounce opals
noun
Say it like: Opa-ls
The correct spelling is opals. A mineral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity, of the chemical formula SiO2·nH2O.
Usage Examples
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Definition
noun
- 1.A mineral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity, of the chemical formula SiO2·nH2O.
- 2.A colloquial name used in molecular biology referring to a particular stop codon sequence, "UGA."
- 3.Any of various lycaenid butterflies of the genus Nesolycaena.
Similar words
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