ˈpəlshən noun
( -s )
Etymology: Late Latin pulsion-, pulsio, from Latin pulsus (past participle of pellere to beat, drive, push) + -ion-, -io -ion — more at felt
: the act or action of pushing or driving : propulsion
these undirected and hence uncoordinated pulsions, so prevalent in childhood — H.A.Murray
— opposed to traction