opal

Definitions


[ˈəʊpl], (Noun)

Definitions:
- a gemstone consisting of a form of hydrated silica, typically semi-transparent and showing many small points of shifting colour against a pale or dark ground
(e.g: a large opal surrounded by small diamonds)


Phrases:

Origin:
late Middle English (as opalus): partly via French opale, from Latin opalus, from Greek opallios, probably based on Sanskrit upala ‘precious stone’ (having been first brought from India)




definition by Oxford Dictionaries