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Sesquicentennial cyclone

roller coaster formerly operated at the 1926 Philadelphia Sesquicentennial Exposition as well as other locations

Pronunciation
/ˌsɛskwəsɛnˈtɛniəl ˈsaɪˌkloʊn/
/ˌsɛskwɪsɛnˈtɛnɪəl ˈsʌɪkləʊn/