noun \ˈō-pəl\

: a white or clear stone that reflects changing colors and that is used in jewelry

Full Definition of OPAL

:  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

Origin of OPAL

Latin opalus, from Greek opallios, ultimately from Sanskrit upala stone, jewel
First Known Use: circa 1586

Rhymes with OPAL

OPAL Defined for Kids


noun \ˈō-pəl\

Definition of OPAL for Kids

:  a mineral with soft changeable colors that is used as a gem
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