noun. An assembly or meeting with all members present.

noun. A condition, space, or enclosure in which air or other gas is at a pressure greater than that of the outside atmosphere.

noun. The condition of being full; fullness.

noun. A space completely filled with matter.

noun. A space lying above the ceiling in a building but below the next floor, especially one allowing movement of air between parts of the building.

noun. The fullness of matter in space: the opposite of vacuum: also used to denote fullness in general.

noun. A quantity of a gaseous body in an inclosed space greater than would remain there under normal atmospheric pressure.

noun. That state in which every part of space is supposed to be full of matter; -- opposed to vacuum.

noun. A condition, as in an occupied room, in which the pressure of the air is greater than that of the outside atmosphere.

noun. A space that is completely filled with matter.

noun. A state of fullness, a great quantity (of something).

noun. A legislative meeting (especially of the Communist Party) in which all members are present.

noun. An enclosed space having greater than atmospheric pressure.

noun. The space above a false ceiling used for cables, ducts etc.

noun. A type of network cabling which satisfies plenum-ratings issued by the National Electrical Code. These cables are safer in case of a fire, producing less smoke and fumes.

noun. an enclosed space in which the air pressure is higher than outside

noun. a meeting of a legislative body at which all members are present

"But it is more usual to employ what is called the plenum process, in which air under high pressure is pumped into the caisson and expels the water, as in a diving bell."

vacuum  

plenum method  system) of ventilation  

plenary  

enclosure  group meeting  meeting  

denim  phenom  venom  

andwhether  annular  beatum  coactus  cupiam  

Copernican universe  Einsteinian universe  Indian file  Newtonian universe  Ptolemaic universe  

plena