| 单词 | pulse |
| 释义 | pulse pulse1 /puls/, n. , v. , pulsed, pulsing. n. 1. the regular throbbing of the arteries, caused by the successive contractions of the heart, esp. as may be felt at an artery, as at the wrist. 2. a single pulsation, or beat or throb, of the arteries or heart. 3. the rhythmic recurrence of strokes, vibrations, or undulations. 4. a single stroke, vibration, or undulation. 5. Elect. a momentary, sudden fluctuation in an electrical quantity, as in voltage or current. 6. Physics. a single, abrupt emission of particles or radiation. 7. a throb of life, emotion, etc. 8. vitality. 9. the general attitude, sentiment, preference, etc., as of the public. v.i. 10. to beat or throb; pulsate. 11. to beat, vibrate, or undulate. 12. Physics. to emit particles or radiation periodically in short bursts. v.t. 13. to cause to pulse. 14. Med. to administer (medication) in interrupted, often concentrated dosages to avoid unwanted side effects. [1300-50; < L pulsus a beat, equiv. to *peld-, base of pellere to set in motion by beating or striking (cf. IMPEL) + -tus, suffix of v. action, with dt < s and backing and raising of e before velar l; r. ME pous < MF < L, as above] pulse2 /puls/, n. 1. the edible seeds of certain leguminous plants, as peas, beans, or lentils. 2. a plant producing such seeds. [1250-1300; ME puls < L: thick pap of meal, pulse. See POULTICE] |
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