Glossary

A raw ceramic glaze containing zinc oxide, often used in terra-cotta.

A brush made with animal hair (usually from hogs) or with synthetic fibers.

A fixed or movable device, such as fins or louvers, designed to block the direct entrance of sun rays into

The crushing or shattering effect of a high explosive.

A molded specimen of mortar with enlarged extremities and reduced center having a cross section of definite area, used for

A measure of Brinell hardness; obtained by dividing the load expressed in kilograms (applied to a ball, usually 10 mm

In a refrigeration system, any liquid used as a heat transfer medium which remains as a liquid and which has