n. & v.
n. 1 a a rhythmical throbbing of the arteries as blood is propelled through them, esp. as felt in the wrists, temples, etc. b each successive beat of the arteries or heart. 2 a throb or thrill of life or emotion. 3 a latent feeling. 4 a single vibration of sound, electric current, light, etc., esp. as a signal. 5 a musical beat. 6 any regular or recurrent rhythm, e.g. of the stroke of oars.
v.intr. 1 pulsate. 2 (foll. by out, in, etc.) transmit etc. by rhythmical beats. pulse code coding information in pulses. pulse code modulation a pulse modulation technique of representing a signal by a sequence of binary codes. pulse modulation a type of modulation in which pulses are varied to represent a signal. pulseless adj.
[ ME f. OF pous f. L pulsus f. pellere puls- drive, beat ]