firebrick

名词 firebrick:

1. brick made of fire clay; used for lining e.g. furnaces and chimneys

fire.brick

n.（名词）
A refractory brick, usually made of fire clay, used for lining furnaces, fireboxes, chimneys, or fireplaces.
耐火砖：一种通常用耐火黏土做成的耐高温的砖，用以建火炉、火箱、烟囱或壁炉