Sapphire

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Sapphire

(n.) Native alumina or aluminium sesquioxide, Al2O3; corundum; esp., the blue transparent variety of corundum, highly prized as a gem.
(n.) The color of the gem; bright blue.
(n.) Any humming bird of the genus Hylocharis, native of South America. The throat and breast are usually bright blue.
(a.) Of or resembling sapphire; sapphirine; blue.