276. Impulse -- N. impulse, impulsion, impetus; momentum; push, pulsion , thrust, shove, jog, jolt, brunt, booming, boost [U.S.] , throw; explosion &c (violence) 173; propulsion &c 284.
277. Recoil -- N. recoil; reaction, retroaction; revulsion; bounce, rebound, ricochet; repercussion, recalcitration ; kick, contrecoup [Fr.] ; springing back &c v.; elasticity &c 325; reflection, reflexion [Brit.] , reflex, reflux; reverberation &c (resonance) 408; rebuff, repulse; return.