1. (

• pulsation ,
• pulsing ,
• pulse ,
• impulse ,

) (electronics) a sharp transient wave in the normal electrical state (or a series of such transients); "the pulsations seemed to be coming from a star" ;

2. (

• pulsation

) a periodically recurring phenomenon that alternately increases and decreases some quantity ;

3. (

• pulse ,
• pulsation ,
• heartbeat ,
• beat

) the rhythmic contraction and expansion of the arteries with each beat of the heart; "he could feel the beat of her heart" ;