1. (

• pulsate ,
• throb ,
• pulse

) expand and contract rhythmically; beat rhythmically; "The baby's heart was pulsating again after the surgeon massaged it" ;

2. (

• pulse ,
• pulsate

) produce or modulate (as electromagnetic waves) in the form of short bursts or pulses or cause an apparatus to produce pulses; "pulse waves"; "a transmitter pulsed by an electronic tube" ;

3. (

• pulse ,

) drive by or as if by pulsation; "A soft breeze pulsed the air" ;