Definition of opal Opal
/owˈpʌl/ - [owpul] - O•pal
We found 7 definitions of opal from 7 different sources.
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What does opal mean?
WordNet
NounPlural: opals |
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| opal - a translucent mineral consisting of hydrated silica of variable color; some varieties are used as gemstones | ||
| mineral solid homogeneous inorganic substances occurring in nature having a definite chemical composition | ||
| opaque gem a gemstone that is opaque | ||
| black opal a dark colored opal with internal reflections of green or red | ||
| fire opal, girasol an opal with flaming orange and yellow and red colors | ||
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Wiktionary 
Webster DictionaryWebster's Unabridged Dictionary 📘
- opal (n.)
A mineral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity.
OmegaWiki DictionaryOmegaWiki Dictionary Ω
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opal
A mineraloid gel which is deposited at a relatively low temperature and may occur in the fissures of almost any kind of rock, being most commonly found with limonite, sandstone, rhyolite, marl and basalt. (source: Wikipedia)
Chambers DictionaryChamber's 20th Century Dictionary 📕
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opal
ō′pal, n. a precious stone of a milky hue, remarkable for its changing colours.—n. Opalesc′ence.—adjs. Opalesc′ent, reflecting a milky or pearly light from the interior; O′paline, relating to, or like, opal.—v.t. O′palise. [Fr. opale—L. opalus.]
Wikipedia 
- The Opal is a rock mineral. It is the birthstone of someone whose birthday lands in the month of October.
Part of speech
🔤- opal, noun, singular of opals.
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