opal — meaning in English
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English meaning
- opal noun A gemstone form of silica that often displays a shifting play of rainbow colors within it.
Senses
opal is used for these senses in English:
- opal (mineral) A mineral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity, of the chemical formula SiO2·nH2O.
opal — full definition
- noun A gemstone form of silica that often displays a shifting play of rainbow colors within it.
- noun A pale, milky blue color flecked with other colors, named after the gemstone.