American Heritage® Dictionary of the English Language, Fourth Edition
- n. A mineral of hydrated silica.
- n. A gemstone made of this mineral, noted for its rich iridescence.
Century Dictionary and Cyclopedia
- n. A mineral consisting of silica like quartz, but in a different condition, having a lower specific gravity and hardness and being without crystalline structure: it usually contains some water, mostly from 3 to 9 per cent. ; ; ; ; ; ; . There are many varieties, the chief of which are — precious or noble opal (including the harlequin opal), which exhibits brilliant and changeable reflections of green, blue, yellow, and red, and which is highly valued as a gem
- n. mineralogy A mineral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity, of the chemical formula SiO2·nH2O.
- n. biology , (genetics), (biochemistry) A colloquial name used in molecular biology referring to a particular stop codon sequence, "UGA."
GNU Webster's 1913
- n. (Min.) A mineral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity.
- n. a translucent mineral consisting of hydrated silica of variable color; some varieties are used as gemstones
- In Florio’s A World of Words 1598 as opale, from French opale, from Latin opalus, from Byzantine Greek ὀπάλλιος (opallios), from Sanskrit उपल (upala, "gem”, “stone"). (Wiktionary)
- Middle English opalus, from Latin, alteration of Greek opallios, probably from Sanskrit upalaḥ, from variant of upara-, lower, from upa, below. (American Heritage® Dictionary of the English Language, Fourth Edition)
“Although opal is not a conclusive indicator of a wetter Mars, it does suggest some interesting scenarios.”
“The most durable opal is a solid piece, free from fractures.”
“The very word opal comes from the Sanskrit upala, meaning “precious,” which I guess says it all!”
“The opal is oblong," the crystal-gazer continued,”
“The story of the king's opal is the one I know, and though it sounds exactly as though it had been made out of a dream, it is none the less interesting for that, anyone will admit; and this is the story:”
“The town is known as the opal capital of the world because 90% of the world's finest opals are mined there.”
“The opal is a beautiful stone which seen at different angles and in different lights seems to glow with various colors.”
“Of all precious stones, the opal is the most lovely and commonplace.”
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“Mine, naturally, was the least expensive; it was an opal ring -- the opal was my favourite stone, because it seems to blush and turn pale as if it had a soul.”
“Hydrated silica, commonly known as opal, has been found across large region of Mars.”
These user-created lists contain the word ‘opal’.
Actual Towns and Cities with Poetic Names.
If you know where the town is located please put that in the comments. All of mine came out of a zip code directory.
Objects that are black, shades of lack, or something with blackness within.
I marvel at the amazing variety of four-letter words in the English language. And that's not even counting really common (to me) words like fuck.
Words that have been used as baby names, including virtue names, nature names, place names, etc.
The title is an actual name given to a Puritan boy in the 17th century.
Looking for tweets for opal.