This meaning refers to a shape that winds around a central axis, resembling the form of a spiral line or object. It is often used in geometry, art, and nature to describe patterns and structures.

This meaning is often used in biology and chemistry to describe a three-dimensional spiral structure, particularly in reference to DNA and other biomolecules.

This meaning denotes a type of fastener, often characterized by a helical ridge or spiral thread that allows it to be securely attached to materials, commonly used in construction and manufacturing.