a. 1. Having, employing, or exerting, a low degree of pressure. [ 1913 Webster ]
2. same as easygoing, 4; as, a low-pressure salesman. Syn. -- easygoing. [ WordNet 1.5 ]
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. [ 1913 Webster ]