World English Dictionary
pulse1 (pʌls)
1.  physiol
 a.  the rhythmic contraction and expansion of an artery at each beat of the heart, often discernible to the touch at points such as the wrists
 b.  a single pulsation of the heart or arteries
2.  physics, electronics
 a.  a transient sharp change in voltage, current, or some other quantity normally constant in a system
 b.  one of a series of such transient disturbances, usually recurring at regular intervals and having a characteristic geometric shape
 c.  Less common name: impulse (as modifier): a pulse generator
3.  a.  a recurrent rhythmic series of beats, waves, vibrations, etc
 b.  any single beat, wave, etc, in such a series
4.  bustle, vitality, or excitement: the pulse of a city
5.  the feelings or thoughts of a group or society as they can be measured: the pulse of the voters
6.  keep one's finger on the pulse to be well-informed about current events
7.  (intr) to beat, throb, or vibrate
8.  (tr) to provide an electronic pulse to operate (a slide projector)
[C14 pous, from Latin pulsus a beating, from pellere to beat]

Collins English Dictionary - Complete & Unabridged 10th Edition
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appearing dead; not breathing or having no perceptible pulse; "an inanimate body"; "pulseless and dead" [syn: breathless
WordNet® 3.0, © 2006 by Princeton University.
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