Definition of "ceramic"

adjective:
- Made of material produced by the high temperature firing of inorganic, nonmetallic rocks and minerals.
  
  from Wiktionary, Creative Commons Attribution/Share-Alike License
noun:
- A hard brittle material that is produced through burning of nonmetallic minerals at high temperatures.
  
  from Wiktionary, Creative Commons Attribution/Share-Alike License
- An object made of this material.
  
  from Wiktionary, Creative Commons Attribution/Share-Alike License