What is the meaning of Spiral?

A curve that is the locus of a point that rotates about a fixed point while continuously increasing its distance from that point.

A helix.

A self-sustaining process with a lot of momentum involved, so it is difficult to accelerate or stop it at once.

A section of track that forms a circle and crosses over itself, used for gaining height in mountainous territory.

Helical, like a spiral.

To move along the path of a spiral or helix.

To cause something to spiral.

To increase continually.

spiral

spiral

coil (contraceptive device)

spiral

spiral

hip

a spiral, coil

a coil

a spiral, coil

a coil

spiral

a spiral

an intrauterine device, a coil (contraceptive device)

Source: wiktionary.org