pulsator

[Lat.) A beater, a striker. půl-sa-tōr-ý, adj. [Fr. puls a to ire; Sp. & Ital. puls a to rio.] Capable of pulsating; beating, throbbing. "An inward, pungent, and pulsatory ache within the skull."-Wotton: Remains, p. 418. pulse (1), *poulce, *pous, *puls (1), subst. [Fr. pouls the pulse, from Lat. pulsum , acc us. of puls us =a beating.. a pulse, from puls us , pa. par. of pello to drive; Sp. & Port. pul so ; Ital. pol so .]