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{%type%} Definitions

WordNet 3.0Copyright Princeton University


Short "hint"

n. - A translucent mineral consisting of hydrated silica of variable color.

Usage examples (35)
  • "The opal is oblong," the crystal-gazer continued,
  • The most durable opal is a solid piece, free from fractures.
  • Although opal is not a conclusive indicator of a wetter Mars, it does suggest some interesting scenarios.
  • Of all precious stones, the opal is the most lovely and commonplace. for more
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