13-Letter Words Containing: S,S,Y

• the branch of psychology concerned with quantitative relations between physical stimuli and their psychological effects

• To interpret or analyze in psychological terms

• A mechanical device used to measure blood pressure and pulse.

• an instrument that indicates whether two periodic motions are synchronous (especially an instrument that enables a pilot to synchronize the propellers of a plane that has two or more engines)

• using language loaded with psychological terminology

• The scientific study of psychology and motivation in history.