impulsion means the act of impelling or driving onward, or the state of being impelled; the sudden or momentary agency of a body in motion on another body; also, the impelling force, or impulse. Lexicurio rates it Rare gem — a strength score of 80 out of 100.
Why “impulsion” is a great word
IMPULSION — [Noun] The act of impelling or driving onward, or the impelling force itself. From Middle English impulsioun, from Old French impulsion, from Latin impulsio, impulsionem, from the verb impellere (to drive forward, impel). Unlike "impulse," which suggests a sudden, spontaneous urge, or "impetus," which implies the initiating momentum for an action, impulsion is the sustained and formal application of a driving force. It is the hydraulic piston's deliberate thrust, the steady pressure of a river against a dam, and the deep, muscular shove that sets a laden barge into motion—the quiet machinery of cause before it surrenders to effect.
Etymology
From Middle English impulsioun, from Old French impulsion, from Latin impulsio, impulsionem.
noun
- The act of impelling or driving onward, or the state of being impelled; the sudden or momentary agency of a body in motion on another body; also, the impelling force, or impulse.“I wrought like a fiend, for I expected every moment to be swamped; and since I found I could not push the coracle directly off, I now shoved straight astern. At length I was clear of my dangerous neighbour, and just as I gave the last impulsion, my hands came across a light cord that was trailing overboard across the stern bulwarks.”
- Influence acting unexpectedly or temporarily on the mind; sudden motive or influence; impulse.“Farther, Chrisostome upon this place saith, that Paule when he thus writeth, doth in no wise denie the nature of the flesh, but exalteth it to a more higher dignitie, namelie, that it should rather obaie the impulsion of the spirite, than lust.”