BRIQUETTE
briquette, briquet
(noun) a block made from charcoal or coal dust and burned as fuel
Source: WordNet® 3.1
Etymology
Noun
briquette (plural briquettes)
Alternative form of briquet
Source: Wiktionary
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.
Source: Webster’s Unabridged Dictionary 1913 Edition