The Collaborative International Dictionary of English v.0.48:

Sinuate \Sin"u*ate\, v. i. [imp. & p. p. Sinuated; p. pr. &
   vb. n. Sinuating.]
   To bend or curve in and out; to wind; to turn; to be sinuous.
   --Woodward.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Sinuated \Sin"u*a`ted\, a.
   Same as Sinuate.
   [1913 Webster]