51Թ

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chalcedony

[ kal-sed-n-ee, kal-suh-doh-nee ]

noun

plural chalcedonies.
  1. a microcrystalline, translucent variety of quartz, often milky or grayish.


chalcedony

/ kælˈsɛdənɪ; ˌkælsɪˈdɒnɪk /

noun

  1. a microcrystalline often greyish form of quartz with crystals arranged in parallel fibres: a gemstone. Formula: SiO 2
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

chalcedony

/ ă-ĕ /

  1. A type of quartz that has a waxy luster and varies from transparent to translucent. It is usually white, pale-blue, gray, brown, or black and is often found as a lining in cavities. Agate, flint, and onyx are forms of chalcedony. Chemical formula: SiO 2 .
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Derived Forms

  • chalcedonic, adjective
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Other 51Թ Forms

  • 󲹱··Dz· [kal-si-, don, -ik], 󲹱·o·Դdzܲ adjective
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51Թ History and Origins

Origin of chalcedony1

First recorded in 1275–1325; Middle English calcedonie, from Late Latin 󲹱ŧōԾܲ (Vulgate, Revelation 21:19), equivalent to 󲹱ŧō- (from Greek 󲹱ŧṓn “chalcedony,” identified by Saint Jerome with Chalcedon, the city) + -ius adjective suffix; -ious
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51Թ History and Origins

Origin of chalcedony1

C15: from Late Latin 󲹱ŧōԾܲ, from Greek 󲹱ŧō a precious stone (Revelation 21:19), perhaps named after 󲹱ŧō Chalcedon, town in Asia Minor
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Example Sentences

Examples have not been reviewed.

One supposed mammal tooth was actually a bit of the mineral chalcedony.

From

The outfit was by 4SDesigns, but that the accompanying chain around his neck was an 18-karat white gold, platinum, chalcedony, turquoise and diamond necklace by Cartier somewhat complicated the point.

From

He’s also brought down a few pieces of furniture I recognize from the palace—a silk-embroidered divan, satin cushions, a shimmering spider-silk throw, and a chalcedony set of tea things.

From

Speakers of English sometimes have trouble knowing how to pronounce Greek-derived words with “ch” in them—“chalcedony,” “chiropodist,” “chimera”—because “ch” also represents the sound in such English words as “church” and “cheese.”

From

With any luck, the territory would contain flint, jasper, or chalcedony, the raw material for spear points, meat scrapers, and other hunting tools.

From

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