单词	oscillation
释义	oscillation noun os·​cil·​la·​tion ˌä-sə-ˈlā-shən  1 : the action or state of oscillating stays can be effectively used to prevent oscillations in new bridges D. B. Steinman 2 : variation, fluctuation famines due to excessive storminess and violent oscillations of rain and drought, heat and cold Ellsworth Huntington 3 : a flow of electricity changing periodically from a maximum to a minimum especially : a flow periodically changing direction 4 : a single swing (as of an oscillating body) from one extreme limit to the other Each oscillation of the pendulum represents one second. oscillational ˌä-sə-ˈlā-sh(ə-)nəl  adjective Synonyms change fluctuation flux inconstancy See all Synonyms & Antonyms Example Sentences the continued oscillation of the fan There has been oscillation between optimism and pessimism among voters. Recent Examples on the Web That results in a regular oscillation that continues forever, a true type of perpetual motion. Tom Metcalfe, NBC News, 15 July 2022 The fans have three adjustable speeds, a 90-degree oscillation, and are currently 10 percent off. Amy Schulman, PEOPLE.com, 6 July 2022 Traveling over a road with frequent bumps—a series of expansion gaps, for example—can result in a bit of vertical oscillation for the middle-row occupants. Jonathan M. Gitlin, Ars Technica, 6 July 2022 That includes your running power, stride length, ground contact time, and vertical oscillation. PCMAG, 12 July 2022 The fan is 42 inches tall, with a small footprint and relatively inconspicuous design, and features four fan speeds and optional oscillation. Camryn Rabideau, Popular Mechanics, 3 June 2022 This limit is essentially the atom’s actual oscillation. Joshua Hawkins, BGR, 18 July 2022 Unbalanced arpeggios create a feeling of weight oscillation, vertigo. Liza Lentini, SPIN, 1 July 2022 An oscillation between the two sets of concerns captures not only our unstable moral and social-justice intuitions, which often depend on who’s the violator and who’s the violated, but also the real trade-offs between privacy and competing concerns. Jeannie Suk Gersen, The New Yorker, 20 June 2022 See More Word History First Known Use 1658, in the meaning defined at sense 1 Medical Definition oscillation noun os·​cil·​la·​tion ˌäs-ə-ˈlā-shən  1 : the action or state of oscillating 2 : a flow of electricity changing periodically from a maximum to a minimum especially : a flow periodically changing direction oscillation noun 1 as in fluctuation the frequent and usually sudden passing from one condition to another fickle springtime weather in which there seemed to be an unceasing oscillation between unseasonable heat and unseasonable cold Synonyms & Similar Words Relevance fluctuation flux change transformation mutation metamorphosis inconstancy transmutation vacillation wavering transmogrification 2 as in vibration a series of slight movements by a body back and forth or from side to side the precise oscillations of the quartz crystal that allows a quartz watch to keep such accurate time Synonyms & Similar Words vibration shaking twitching trembling quivering shuddering shivering tremor rocking jiggling quaking twitch tremble shake quiver juddering shudder palpitation shiver jiggle
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