Pulse wave
Pulse Pulse, n. [OE. pous, OF. pous, F. pouls, fr. L. pulsus (sc. venarum), the beating of the pulse, the pulse, from pellere, pulsum, to beat, strike; cf. Gr. ? to swing, shake, ? to shake. Cf. {Appeal}, {Compel}, {Impel}, {Push}.] 1. (Physiol.) The beating or throbbing of the heart or blood vessels, especially of the arteries. [1913 Webster]

Note: In an artery the pulse is due to the expansion and contraction of the elastic walls of the artery by the action of the heart upon the column of blood in the arterial system. On the commencement of the diastole of the ventricle, the semilunar valves are closed, and the aorta recoils by its elasticity so as to force part of its contents into the vessels farther onwards. These, in turn, as they already contain a certain quantity of blood, expand, recover by an elastic recoil, and transmit the movement with diminished intensity. Thus a series of movements, gradually diminishing in intensity, pass along the arterial system (see the Note under {Heart}). For the sake of convenience, the radial artery at the wrist is generally chosen to detect the precise character of the pulse. The pulse rate varies with age, position, sex, stature, physical and psychical influences, etc. [1913 Webster]

2. Any measured or regular beat; any short, quick motion, regularly repeated, as of a medium in the transmission of light, sound, etc.; oscillation; vibration; pulsation; impulse; beat; movement. [1913 Webster]

The measured pulse of racing oars. --Tennyson. [1913 Webster]

When the ear receives any simple sound, it is struck by a single pulse of the air, which makes the eardrum and the other membranous parts vibrate according to the nature and species of the stroke. --Burke. [1913 Webster]

{Pulse glass}, an instrument consisting to a glass tube with terminal bulbs, and containing ether or alcohol, which the heat of the hand causes to boil; -- so called from the pulsating motion of the liquid when thus warmed.

{Pulse wave} (Physiol.), the wave of increased pressure started by the ventricular systole, radiating from the semilunar valves over the arterial system, and gradually disappearing in the smaller branches. [1913 Webster]

the pulse wave travels over the arterial system at the rate of about 29.5 feet in a second. --H. N. Martin. [1913 Webster]

{To feel one's pulse}. (a) To ascertain, by the sense of feeling, the condition of the arterial pulse. (b) Hence, to sound one's opinion; to try to discover one's mind. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • pulse wave — n the wave of increased pressure started by the ventricular systole radiating from the semilunar valves over the arterial system at a rate varying between 20 and 30 feet (6.1 and 9.1 meters) per second in different arteries * * * the elevation of …   Medical dictionary

  • pulse-wave — pulseˈ wave noun The expansion of the artery, moving from point to point, like a wave, as each beat of the heart sends the blood to the extremities • • • Main Entry: ↑pulse …   Useful english dictionary

  • Pulse wave — A pulse wave or pulse train is a kind of non sinusoidal waveform that is similar to a square wave, but does not have the symmetrical shape associated with a perfect square wave. It is a term common to synthesizer programming, and is a typical… …   Wikipedia

  • pulse wave — noun : the wave of increased pressure started by the ventricular systole radiating from the semilunar valves over the arterial system at a rate varying between 20 and 30 feet a second in different arteries * * * pulse wave, the wave of raised… …   Useful english dictionary

  • pulse-wave — /ˈpʌls weɪv/ (say puls wayv) noun the wave of blood flowing along an artery as the result of a heartbeat …   Australian English dictionary

  • Pulse — Pulse, n. [OE. pous, OF. pous, F. pouls, fr. L. pulsus (sc. venarum), the beating of the pulse, the pulse, from pellere, pulsum, to beat, strike; cf. Gr. ? to swing, shake, ? to shake. Cf. {Appeal}, {Compel}, {Impel}, {Push}.] 1. (Physiol.) The… …   The Collaborative International Dictionary of English

  • Pulse glass — Pulse Pulse, n. [OE. pous, OF. pous, F. pouls, fr. L. pulsus (sc. venarum), the beating of the pulse, the pulse, from pellere, pulsum, to beat, strike; cf. Gr. ? to swing, shake, ? to shake. Cf. {Appeal}, {Compel}, {Impel}, {Push}.] 1. (Physiol.) …   The Collaborative International Dictionary of English

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