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OPAL
opal
(noun) a translucent mineral consisting of hydrated silica of variable color; some varieties are used as gemstones
Source: WordNet® 3.1
Etymology
Noun
opal (plural opals)
(mineral) A mineral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity, of the chemical formula SiO2·nH2O.
(biology, genetics, biochemistry) A colloquial name used in molecular biology referring to a particular stop codon sequence, "UGA."
Any of various lycaenid butterflies of the genus Nesolycaena.
Anagrams
• OLAP, POLA, Palo, alop, aplo-, pola
Proper noun
Opal
A female given name from English from the precious stone, invented in the nineteenth century.
(Australia) A type of petrol made by British Petroleum designed to be unable to be used for petrol sniffing.[Developed 2005.]
A hamlet in Alberta, Canada
A census-designated place in Virginia
A town in Wyoming
Anagrams
• OLAP, POLA, Palo, alop, aplo-, pola
Source: Wiktionary
O"pal, n. Etym: [L. opalus: cf. Gr. upala a rock, stone, precious stone: cf. F. opale.] (Min.)
Definition: A mineral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity.
Note: The precious opal presents a peculiar play of colors of delicate tints, and is highly esteemed as a gem. One kind, with a varied play of color in a reddish ground, is called the harlequin opal. The fire opal has colors like the red and yellow of flame. Common opal has a milky appearance. Menilite is a brown impure variety, occurring in concretions at Menilmontant, near Paris. Other varieties are cacholong, girasol, hyalite, and geyserite.
Source: Webster’s Unabridged Dictionary 1913 Edition
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Word of the Day
29 May 2025
CRITICAL
(adjective) characterized by careful evaluation and judgment; “a critical reading”; “a critical dissertation”; “a critical analysis of Melville’s writings”
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