| 单词 | impulse |
| 释义 | Word Frequency impulse(ˈɪmpʌls) noun 1. an impelling force or motion; thrust; impetus 2. a sudden desire, whim, or inclination I bought it on an impulse 3. an instinctive drive; urge 4. tendency; current; trend 5. physics a. the product of the average magnitude of a force acting on a body and the time for which it acts b. the change in the momentum of a body as a result of a force acting upon it for a short period of time 6. physiology nerve impulse 7. electronics a less common word for pulse1 (sense 2) 8. on impulse Word origin C17: from Latin impulsus a pushing against, incitement, from impellere to strike against; see impel |
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