Anfractuous
Anfractuous ({not transcribed}) , adjective
[Latin anfractuosus, from anfractus a turning, a winding, from the unused anfringere to wind, bend; an-, for amb- + fractus, past participle of frangere to break: compare French anfractueux.]
Winding; full of windings and turnings; sinuous; tortuous; as, the anfractuous spires of a horn.