noun
carbuncle
A deep red gemstone, especially a garnet.
A deep red carbuncle gleamed in the ring.
Etymology
Latin carbo means coal, and the diminutive makes a little coal. A deep red gemstone received that name because its rich color suggested a glowing ember.
More examples
- The old inventory listed a silver brooch set with a carbuncle.
- The jeweler identified the carbuncle as garnet.
- Candlelight brightened the polished carbuncle.
Forms
carbuncle · carbuncles