| 单词 | moment |
| 释义 | moment /moh"meuhnt/, n. 1. an indefinitely short period of time; instant: I'll be with you in a moment. 2. the present time or any other particular time (usually prec. by the): He is busy at the moment. 3. a definite period or stage, as in a course of events; juncture: at this moment in history. 4. importance or consequence: a decision of great moment. 5. a particular time or period of success, excellence, fame, etc.: His big moment came in the final game. 6. Statistics. the mean or expected value of the product formed by multiplying together a set of one or more variates or variables each to a specified power. 7. Philos. a. an aspect of a thing. b. Obs. an essential or constituent factor. 8. Mech. a. a tendency to produce motion, esp. about an axis. b. the product of a physical quantity and its directed distance from an axis: moment of area; moment of mass. [1300-50; ME < L momentum motion, cause of motion, hence, influence, importance, essential factor, moment of time, equiv. to mo- (var. s. of movere to MOVE) + -mentum -MENT] Syn. 1. second, jiffy, trice, flash, twinkling. See minute1. 4. significance, weight, gravity. See importance. |
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