Associations to the word «Opal»

Wiktionary

OPAL, noun. (mineralogy) A mineral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity, of the chemical formula SiO2·nH2O.
OPAL, noun. (biology) (genetics) (biochemistry) A colloquial name used in molecular biology referring to a particular stop codon sequence, "UGA."
OPAL, proper noun. A female given name from the precious stone, invented in the nineteenth century.
OPAL, proper noun. (Australia) A type of petrol made by British Petroleum designed to be unable to be used for petrol sniffing.[Developed 2005.]
OPAL, proper noun. A hamlet in Alberta, Canada
OPAL, proper noun. A CDP in Virginia
OPAL, proper noun. A town in Wyoming
OPAL GLASS, noun. Type of opaque, translucent glass

Dictionary definition

OPAL, noun. A translucent mineral consisting of hydrated silica of variable color; some varieties are used as gemstones.

Wise words

Words, words, words! They shut one off from the universe. Three quarters of the time one's never in contact with things, only with the beastly words that stand for them.
Aldous Huxley