[ sin-yoo-ey-shuh n ]
/ ˌsɪn yuˈeɪ ʃən /
a winding; sinuosity.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for sinuation
The sinuation of the outer lip and impression of the whorl behind the peristome, give a slightly ringent aspect to the mouth.Voyage Of H.M.S. Rattlesnake, Vol. 2 (of 2)|John MacGillivray