Used to wish someone enjoyment of the meal they are about to eat.

A place where people arrange to meet. / (figuratively) A place where cultures, ideas etc. meet.

A final meal that a prisoner may choose before being executed.

(engineering) The predicted mean average time taken for a part or system to fail for the first time.

Alternative spelling of attometre

An instrument sensitive to ionizing radiations used in prospecting for radioactive deposits.

An alloy of tin, copper, and mercury, sometimes formerly used for the bearings and packings of machinery.

A hard alloy of about four parts of copper to one of tin, used for making bells.

A standard defining a standardized isotopic composition of water.

A bullet having a complete covering of copper over the lead core. / The metal jacket itself, which covers the lead core.