Defined in chemistry texts as a solid which is neither a metal nor a polymer.
Sound vague? There's a reason. It's a broad class of materials including everything from clay to graphite to sapphire.

Generally, these tend to be hard, brittle materials with high melting points.

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.


© Webster 1913.

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