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·pulsive, pro·pulso·ry (-sə-rē) adj. |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.