opal
(noun) a translucent mineral consisting of hydrated silica of variable color; some varieties are used as gemstones
Source: WordNet® 3.1
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.
• OLAP, POLA, Palo, alop, aplo-, pola
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
• 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
9 May 2025
(noun) anything in accord with principles of justice; “he feels he is in the right”; “the rightfulness of his claim”
Espresso is both a coffee beverage and a brewing method that originated in Italy. When making an espresso, a small amount of nearly boiling water under pressure forces through finely-ground coffee beans. It has more caffeine per unit volume than most coffee beverages. Its smaller serving size will take three shots to equal a mug of standard brewed coffee.
