A non intentional permanent sharp bend or curve in a rail. a kink indicates a defect.
An accidental curling, twist, or doubling turn in a cable or rope, occasioned by its being very stiff, or close laid, or by being drawn too hastily out of the coil or tier in which it was coiled. ( see coiling.)—to kink. to twist.
An unintended twist or turn in a rope or cable.
A sharp angular reflection in a borehole.
A dog leg in a wire line or cable.
In fabrics, a place where a short length of yarn has spontaneously doubled back on itself.