Im*pul"sion (?), n. [L. impulsio: cf. F. impulsion. See Impel.]
1.
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.
"The
impulsion of the air."
Bacon.
2.
Influence acting unexpectedly or temporarily on the mind; sudden motive or influence; impulse.
"The
impulsion of conscience."
Clarendon. "Divine
impulsion prompting."
Milton.
© Webster 1913.