An‐frac′tu‐os″i‐ty (�), n.; pl.Anfractuosities (#). [Cf. F. anfractuosité.] 1. A state of being anfractuous, or full of windings and turnings; sinuosity.
The anfractuosities of his intellect and temper.
Macaulay.
2. (Anat.) A sinuous depression or sulcus like those separating the convolutions of the brain.