\Bri*quette"\, n. [Also {briquet}.] [F., dim. of
brique brick.]
1. A block of compacted coal dust, or peat, etc., for fuel.
2. A block of artificial stone in the form of a brick, used
   for paving; also, a molded sample of solidified cement or
   mortar for use as a test piece for showing the strength of
   the material.