/ ˈsɪnjuəs; NAmE / adjective
( literary ) turning while moving, in an elegant way; having many curves :
a sinuous movement
the sinuous grace of a cat
the sinuous course of the river
► sinu·ous·ly adverb
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WORD ORIGIN
late 16th cent.: from French sinueux or Latin sinuosus , from sinus a bend.