briquet

n. [ Also briquet. ] [ F., dim. of brique brick. ] 1. A block of compacted charcoal, coal dust, or peat, etc., used as a fuel. Charcoal briquettes are a common fuel used for the outdoor barbecue grill. [ Webster 1913 Suppl. +PJC ]

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. [ Webster 1913 Suppl. ]