a winding; sinuosity.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use sinuation in a sentence
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