In the early Greek theater, a flight of steps from the middle of the stage to the orchestra; used by

A building or chamber for the deposit of the bones of the dead.

A single-blow impact test utilizing a falling pendulum which breaks a specimen, usually notched, supported at both ends.

A door to an incinerator through which waste is passed into the combustion chamber.

Feeding materials into a concrete or mortar mixer, furnace, or other receptacle where they will be further treated or processed.

1. The intense effort to complete an academic architectural problem within a specified time. 2. The time in which this

The quantity of refrigerant in a refrigeration system.