I. ˈthrəstə(r) noun
( -s )
Etymology: thrust (I) + -er
: one that thrusts: as
a. : one that rides too close to the hounds in fox hunting
b. : one that intrudes himself or pushes himself forward : pusher
a crude and awkward social thruster
II. noun
also thrus·tor ˈthrəstə(r)
( -s )
Etymology: thrustor from thrust + -or (I) (I)
: reaction engine