Simple past tense and past participle of oscillate.(verb)
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Use "oscillated" in a sentence
"I state that the variation in average finch beak size oscillated, which is accurate."
"Therefore, if the missing 2/3 of the neutrinos from the Sun are absent because they have "oscillated" from ne to nm and nt, they should contribute to the neutral and elastic interactions, but not the charged-current interactions."
"Behind her, a fan oscillated, stirring the stale air and pulling strands of her hair from the tieback."