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chalcedony

UK:^*^*UK and possibly other pronunciationsUK and possibly other pronunciations/kælˈsɛdənɪ/US:USA pronunciation: respellingUSA pronunciation: respelling(kal sed′n ē, kal′sə dō′nē)

Inflections of 'chalcedony' (n): npl: chalcedonies

chal•ced•o•ny (kal sed′n ē, kal′sə dō′nē),USA pronunciation n., pl. -nies.

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

Greek chalkēdó̄n chalcedony, identified by Saint Jerome with Chalcedon, the city) + -ius -ious
Late Latin chalcēdōnius (Vulgate, Rev. XIX, 19), equivalent. to chalcēdōn- (
1275–1325; Middle English calcedonie

Collins Concise English Dictionary © HarperCollins Publishers::

chalcedony /kælˈsɛdənɪ/, calcedony n ( pl -nies)

a microcrystalline often greyish form of quartz with crystals arranged in parallel fibres: a gemstone. Formula: SiO₂

Etymology: 15th Century: from Late Latin chalcēdōnius, from Greek khalkēdōn a precious stone (Revelation 21:19), perhaps named after Khalkēdōn Chalcedon, town in Asia Minorchalcedonic /ˌkælsɪˈdɒnɪk/ adj

'chalcedony' also found in these entries (note: many are not synonyms or translations):

agate - bloodstone - carnelian - chrysoprase - moss agate - onyx - plasma - prase - sard - sardonyx - flint - quartz - thunder egg

In Lists: Precious stones, more...

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⇱ chalcedony - WordReference.com Dictionary of English

chalcedony