| 单词 | pulse |
| 释义 | Word Frequency pulse 1(pʌls) noun 1. physiology 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. (as modifier) a pulse generator Less common name: impulse3. 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 verb 7. (intransitive) to beat, throb, or vibrate 8. (transitive) to provide an electronic pulse to operate (a slide projector) Derived forms pulseless (ˈpulseless) adjective pulselessness (ˈpulselessness) noun Word origin C14 pous, from Latin pulsus a beating, from pellere to beatWord Frequency pulse 2(pʌls) noun 1. the edible seeds of any of several leguminous plants, such as peas, beans, and lentils 2. the plant producing any of these seeds Word origin C13 pols, from Old French, from Latin puls pottage of pulse |
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