| 释义 |
WordReference Random House Learner's Dictionary of American English © 2024os•cil•la•tion /ˌɑsəˈleɪʃən/USA pronunciation n. - the change or switch in something, such as a decrease or increase, or the single swing in one direction of something that is oscillating;
fluctuation: [uncountable]unexplainable oscillation in the stock market.[countable]wild oscillations of the pointer on the temperature gauge.
WordReference Random House Unabridged Dictionary of American English © 2024os•cil•la•tion (os′ə lā′shən),USA pronunciation n. - an act or instance of oscillating.
- Physicsa single swing or movement in one direction of an oscillating body.
- fluctuation between beliefs, opinions, conditions, etc.
- Physics
- Physicsan effect expressible as a quantity that repeatedly and regularly fluctuates above and below some mean value, as the pressure of a sound wave or the voltage of an alternating current.
- Physicsa single fluctuation between maximum and minimum values in such an effect.
- Mathematics
- the difference between the least upper bound and the greatest lower bound of the functional values of a function in a given interval.
- Also called saltus. the limit of the oscillation in an interval containing a given point, as the length of the interval approaches zero.
- Latin oscillātiōn- (stem of oscillātiō) a swinging, equivalent. to oscillāt(us) (see oscillate) + -iōn- -ion
- 1650–60
Collins Concise English Dictionary © HarperCollins Publishers:: oscillation /ˌɒsɪˈleɪʃən/ n - regular fluctuation in value, position, or state about a mean value, such as the variation in an alternating current or the regular swinging of a pendulum
- a single cycle of such a fluctuation
- the act or process of oscillating
oscillatory /ˈɒsɪlətərɪ -trɪ/ adj |