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propulsory
pro·pul·sion P0604300 (prə-pŭl′shən)n.1. The process of driving or propelling.2. A driving or propelling force. [Medieval Latin prōpulsiō, prōpulsiōn-, onslaught, urging on, from Latin prōpulsus, past participle of prōpellere, to drive forward; see propel.] pro·pul′sive, pro·pul′so·ry (-sə-rē) adj.EncyclopediaSeepropulsion |