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opal
1 ENTRIES FOUND:
plural opals
plural opals
Learner's definition of OPAL
[count, noncount]
: a white or clear stone that reflects changing colors and that is used in jewelry猫眼石；蛋白石 — see color picture on this page
: a usually amorphous mineral that is a hydrated silica softer and less dense than quartz and typically with definite and often marked iridescent play of colors and is used especially as a gem
Example Sentences
Recent Examples on the Web The opal is larger than a brick and is broken into two pieces, which von Brandt said was a practice used decades ago to prove gem quality. 
chicagotribune.com, 20 Feb. 2022 The opal is larger than a brick and is broken into two pieces, which von Brandt said was a practice used decades ago to prove gem quality. chicagotribune.com, 20 Feb. 2022 The opal is larger than a brick and is broken into two pieces, which von Brandt said was a practice used decades ago to prove gem quality. chicagotribune.com, 20 Feb. 2022 The opal is larger than a brick and is broken into two pieces, which von Brandt said was a practice used decades ago to prove gem quality. chicagotribune.com, 20 Feb. 2022 The opal is larger than a brick and is broken into two pieces, which von Brandt said was a practice used decades ago to prove gem quality. chicagotribune.com, 20 Feb. 2022 The opal is larger than a brick and is broken into two pieces, which von Brandt said was a practice used decades ago to prove gem quality. chicagotribune.com, 20 Feb. 2022 The opal is larger than a brick and is broken into two pieces, which von Brandt said was a practice used decades ago to prove gem quality. chicagotribune.com, 20 Feb. 2022 The opal is larger than a brick and is broken into two pieces, which von Brandt said was a practice used decades ago to prove gem quality. chicagotribune.com, 20 Feb. 2022 See More
chicagotribune.com, 20 Feb. 2022 The opal is larger than a brick and is broken into two pieces, which von Brandt said was a practice used decades ago to prove gem quality. chicagotribune.com, 20 Feb. 2022 The opal is larger than a brick and is broken into two pieces, which von Brandt said was a practice used decades ago to prove gem quality. chicagotribune.com, 20 Feb. 2022 The opal is larger than a brick and is broken into two pieces, which von Brandt said was a practice used decades ago to prove gem quality. chicagotribune.com, 20 Feb. 2022 The opal is larger than a brick and is broken into two pieces, which von Brandt said was a practice used decades ago to prove gem quality. chicagotribune.com, 20 Feb. 2022 The opal is larger than a brick and is broken into two pieces, which von Brandt said was a practice used decades ago to prove gem quality. chicagotribune.com, 20 Feb. 2022 The opal is larger than a brick and is broken into two pieces, which von Brandt said was a practice used decades ago to prove gem quality. chicagotribune.com, 20 Feb. 2022 The opal is larger than a brick and is broken into two pieces, which von Brandt said was a practice used decades ago to prove gem quality. chicagotribune.com, 20 Feb. 2022 See More Word History
Etymology
Latin opalus, from Greek opallios, ultimately from Sanskrit upala stone, jewel
First Known Use
circa 1586, in the meaning defined above
Time Traveler
The first known use of opal was circa 1586 Phrases Containing opal
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