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helicoid

(hel′i ko̵id′)

adjective

shaped like, or coiled in the form of, a spiral, as the shell of a snail or certain inflorescences

Origin: Gr helikoeidēs < helix, a spiral + -eidēs, -oid

noun

Geom. a surface generated by the rotation of a plane or twisted curve about a fixed line so that each point of the curve traces out a circular helix with the fixed line as axis

See helicoid in American Heritage Dictionary 4

adjective

Arranged in or having the approximate shape of a flattened coil or spiral.

noun
Mathematics

A surface in the form of a coil or screw.

Origin:

Origin: Greek helikoeidēs

Origin: : helix, helik-, spiral; see helix

Origin: + -oeidēs, -oid

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