Wordnet 3.0
NOUN (1)
1. 
 an artifact made of hard brittle material produced from nonmetallic minerals by firing at high temperatures; 
ADJECTIVE (1)
1. 
 of or relating to or made from a ceramic; 
- Example: "a ceramic dish"
The Collaborative International Dictionary of English v.0.48:
Ceramic \Ce*ram"ic\, a. [Gr. ?, fr. ? earthenware. Cf.
   Keramic.]
   Of or pertaining to pottery; relating to the art of making
   earthenware; as, ceramic products; ceramic ornaments for
   ceilings.
   [1913 Webster]
WordNet (r) 3.0 (2006):
ceramic
    adj 1: of or relating to or made from a ceramic; "a ceramic
           dish"
    n 1: an artifact made of hard brittle material produced from
         nonmetallic minerals by firing at high temperatures