Firebrick (noun)

A brick made of refractory clay, used for lining furnaces, fireplaces, and the like, as it can withstand high temperatures.

Origin:

Firebrick is a compound word, fire and brick. fire refers to the high temperatures that the brick is designed to withstand and brick is a type of building material made from clay.

Examples:

1. The firebrick will be used to line the furnace and protect it from the heat.
2. The firebrick was used to build the fireplace and it will withstand the heat of the fire.
3. Firebrick is an important material for construction of a furnace.
4. The firebrick was specially formulated to withstand high temperatures and resist thermal shock.
5. Firebrick is a common material used in the construction of fireplaces and ovens.