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runwild-foreveryoung likes this
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sinusoidal posted this
si·nu·soi·dal adj \ˌsīn-yə-ˈsȯi-dəl, ˌsī-nə-\
: of, relating to, shaped like, or varying according to a sine curve or sine wave
— si·nu·soi·dal·ly adverb
