firebrick

[ fahyuhr-brik ]

noun

1. a brick made of fire clay.

firebrick

/ ˈfaɪəˌbrɪk /

noun

1. a refractory brick made of fire clay, used for lining furnaces, flues, etc

Word History and Origins

Origin of firebrick¹

First recorded in 1785–95; fire + brick

Example Sentences

One of the biggest mistakes I routinely see is the use of regular mortar to set the actual high-temperature firebrick.

From Seattle Times

It’s mesmerizing to watch him skillfully use a thin coating of wet fire clay to create a fireproof joint between firebrick in fireplaces.

From Washington Post

Skilled masons use a thin coating of wet fire clay to create a fireproof joint between firebrick in fireplaces.

From Seattle Times

The firebrick that should be used in a firebox is a special refractory style that is meant for high temperatures.

From Seattle Times

In the early ’70s, he began creating more conceptual installations of firebrick before turning back to clay a decade later with his geometric vessels and sculptures.

From Los Angeles Times