impulse vs impulsion

impulse and impulsion both are nouns.

Word	Noun	Adjective	Verb	Adverb
impulse	Yes	No	No	No
impulsion	Yes	No	No	No

As nouns, impulse and impulsion are synonyms defined as:

Other synonyms of impulse include impetus.

impulse (noun)	impulsion (noun)
the act of applying force suddenly	the act of applying force suddenly
an impelling force or strength	a force that moves something along
the electrical discharge that travels along a nerve fiber
(electronics) a sharp transient wave in the normal electrical state (or a series of such transients)
a sudden desire
an instinctive motive