Definitions for opalˈoʊ pəl
Random House Webster's College Dictionary
a mineral, an amorphous form of silica, SiO2, with some water of hydration, found in many varieties and colors, including milky white.
a gemstone made of this, esp. of an iridescent variety.
Category: Jewelry, Mining
Origin of opal:
1350–1400; ME < L opalus < Gk opállios opal, gem
a translucent mineral consisting of hydrated silica of variable color; some varieties are used as gemstones
A mineral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity, of the chemical formula SiOu00B7nHO.
, , A colloquial name used in molecular biology referring to a particular stop codon sequence, "UGA."
from the precious stone, invented in the nineteenth century.
A type of petrol made by British Petroleum designed to be unable to be used for petrol sniffing.
The Nuttall Encyclopedia
a variety of quartz, of which the finest kind, precious opal, is translucent, with blue or yellow tint, and when polished with a convex surface shows an admirable play of colours; it is found chiefly at Cerwenitza, Austria.
Translations for opal
Kernerman English Multilingual Dictionary
a type of usually bluish-white or milky white precious stone, with slight traces or streaks of various other colours
There are three opals in her brooch; (also adjective) an opal necklace.
- حَجَر عَيْن الشَّمْس: حَجَر كريمArabic
- opalaPortuguese (BR)
- der Opal, Opal-...German
- opal; opal-Danish
- दूधिया पत्थरHindi
- baiduri, opalIndonesian
- opale; di opaleItalian
- 단백석, 오팔Korean
- opal, baiduriMalay
- (de) opalRomanian
- opál; opálovýSlovak
- 蛋白石，貓眼石，乳色玻璃Chinese (Trad.)
- دودھيا، ايک پتھرUrdu
- ôpan (khoáng chất)Vietnamese
- 蛋白石，猫眼石，乳色玻璃Chinese (Simp.)
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