plural of spiral ginger

(geometry) An approximation of the golden spiral created by drawing circular arcs connecting the opposite corners of squares in a Fibonacci tiling; a spiral formed by connecting quarter-circles whose radii are Fibonacci number multiples of the initial radius.

The nematode Synhimantus spiralis / Wad hook

plural of spiral staircase

(geometry) A self-similar spiral curve which often appears in nature.

(geometry) A logarithmic spiral whose growth factor is φ, the golden ratio.

Either of a pair of spirally wound conductors with metal balls at their ends. Placing one above the other forms an induction coil.

Synonym of Riess spiral

The situation in which members of an ideological group become increasingly zealous and intolerant, eventually turning on other members.

A neo-pagan group dance emphasizing community and rebirth.