from the GNU version of the Collaborative International Dictionary of English
- A suction valve or check valve at the lower end of a pipe; esp., such a valve in a steam-engine condenser opening to the air pump.
- n. the valve that opens to the air pump from the condenser.
from The Century Dictionary and Cyclopedia
- n. The valve between the condenser and the air-pump in a steam-engine.
Sorry, no etymologies found.
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