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Having, employing, or exerting, a low degree of pressure. Low- pressure steam engine, a steam engine in which low steam is used; often applied to a condensing engine even when steam at high pressure is used. See Steam engine.

that has been used in a high-pressure cylinder is made to do further service in a larger low-pressure cylinder, sometimes in several larger cylinders, successively. -- Compound ether. (Chem.) See under Ether. -- Compound flower (Bot.), a flower head resembling a single flower, but really composed of several florets…

ssel for receiving the exhaust steam from the high-pressure cylinder before it enters the low-pressure cylinder, in a compound engine.

y the governor, used in one system of marine-engine governing to connect both ends of the low-pressure cylinder as a supplementary control.

am, steam of which the pressure greatly exceeds that of the atmosphere. -- Low steam, or Low-pressure steam, steam of which the pressure is less than, equal to, or not greatly above, that of the atmosphere. -- Saturated steam, steam at the temperature of the boiling point which corresponds to its pressure; -- sometim…

Transforming or converting a low-pressure current into one of high pressure; as, a step-up transformer.