Native alumina or aluminium sesquioxide, Al2O3; corundum; esp., the blue transparent variety of corundum, highly prized as a gem. of rubies, sapphires, and of pearlés white. Chaucer.
The color of the gem; bright blue.
Any humming bird of the genus Hylocharis, native of South America. The throat and breast are usually bright blue. Star sapphire, or Asteriated sapphire (Min.), a kind of sapphire which exhibits asterism.
Of or resembling sapphire; sapphire; blue. "The sapphire blaze." Gray.
98,828 entries. Headwords are matched first, then definition text.