clinker

• Hartes, steinartiges Rückstandsprodukt beim Verbrennen von Kohle oder anderen Brennstoffen; außerdem ein hart gebrannter Ziegelstein, der zum Pflastern verwendet wird.

A noun referring to a hard, stony residue left after burning coal or other fuels, or a type of hard brick used for paving.

1. Incombustible residueB2formal

   A hard, stony fragment of incombustible material left after burning wood, coal, or charcoal.

   Schlacke

   • The fireplace was full of clinker after the fire died down.
   • He removed the clinker from the furnace to improve airflow.
   • Old coal stoves often produce a lot of clinker.

   Synonymecinderscoriaslag

2. Hard paving brickB2formalbritish

   A very hard, durable brick used for paving roads or floors.

   Klinker

   • The path was laid with red clinker bricks.
   • Clinker bricks are known for their strength and resistance to wear.
   • They used clinker to pave the courtyard.

• Veraltetes Verb für das Erzeugen eines scharfen, klingenden Geräuschs (klirren, scheppern); in der Metallurgie historisch auch für das Bilden von Klinker (hartem, zusammengesintertem Rückstand bei der Verbrennung von Kohle oder Erz).

An obsolete verb meaning to make a sharp, ringing sound, or to clink; also used historically in metallurgy to refer to the process of forming clinker (hard, fused residue from burning coal or ore).

1. Remove clinkerC1formal

   To clear out the cinders and clinker from a furnace, stove, or similar device.

   Schlacke entfernen

   • The engineer had to clinker the furnace before the next shift.
   • He spent the morning clinkering the old boiler.
   • Regularly clinkering the stove improves its efficiency.

2. C1formal

   To turn into clinker or form clinker under excessive heat during burning.

   Klinker bilden

   • If the temperature gets too high, the coal may clinker.
   • The ash began to clinker due to the intense heat.
   • Improper firing can cause the material to clinker and damage the equipment.