clinker

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. The incombustible residue, fused into an irregular lump, that remains after the combustion of coal.
2. n. A partially vitrified brick or a mass of bricks fused together.
3. n. An extremely hard burned brick.
4. n. Vitrified matter expelled by a volcano.
5. n. Slang A sour note in a musical performance: hit a clinker.
6. n. Slang A mistake; a blunder.
7. n. Slang Something of inferior quality; a conspicuous failure: a clinker of a show.
8. n. Chiefly British Something admirable or first-rate.
9. v. To form clinkers in burning.

Century Dictionary and Cyclopedia

1. n. That which clinks. Specifically
2. n. A metal-heeled shoe used in dancing jigs.
3. n. The partly melted and agglutinated residuum of the combustion of coal which has a fusible ash.
4. n. A partially vitrified brick or mass of bricks.
5. n. A kind of hard Dutch or Flemish brick, used for paving yards and stables.
6. n. Vitrified or burnt matter thrown up by a volcano.
7. n. A scale of black oxid of iron, formed when iron is heated to redness in the open air.
8. n. A deep impression of a horse's or cow's foot; a small puddle so formed.
9. To form clinker; become incrusted with clinker.
10. n. In cricket, a ball bowled exceedingly well.

Wiktionary

1. n. Someone or something that clinks.
2. n. in the plural Fetters.
3. n. Someone or something that clinches.

GNU Webster's 1913

1. n. A mass composed of several bricks run together by the action of the fire in the kiln.
2. n. Scoria or vitrified incombustible matter, formed in a grate or furnace where anthracite coal in used; vitrified or burnt matter ejected from a volcano; slag.
3. n. A scale of oxide of iron, formed in forging.
4. n. A kind of brick. See Dutch clinker, under Dutch.

WordNet 3.0

1. v. clear out the cinders and clinker from
2. v. turn to clinker or form clinker under excessive heat in burning
3. n. a fragment of incombustible matter left after a wood or coal or charcoal fire
4. n. a hard brick used as a paving stone