A cement of clay or other tenacious infusible substance for sealing joints in apparatus, or the mouths of vessels or tubes, or for coating the bodies of retorts, etc., when exposed to heat; -- called also luting.

A straight-edged piece of wood for striking off superfluous clay from mold.

To close or seal with lute; as, to lute on the cover of a crucible; to lute a joint.

To join leather-hard clay surfaces together, with slip or slurry.

Seal with fluid clay slip.

A fireclay mixture for sealling cracks to make a gas tight joint on annealing box covers, crucible coverss, etc.

Either the claylike compound smeared over joints and vessels to seal and protect them or the act of such sealing.

two pieces of clay, often separate halves of a vessel, are joined by pinching the edges together. The join is smoothed over using a spatula.

To join two pottery surfaces together with slip.