HELICOID

Etymology

Adjective

helicoid (comparative more helicoid, superlative most helicoid)

Having the form of a flattened helix

Noun

helicoid (plural helicoids)

(mathematics) A minimal surface in the form of a flattened helix.

Source: Wiktionary

Hel"i*coid, a. Etym: [Gr. hélicoïde. See Helix.]

1. Spiral; curved, like the spire of a univalve shell.

2. (Zoöl.)

Definition: Shaped like a snail shell; pertaining to the Helicidæ, or Snail family. Helicoid parabola (Math.), the parabolic spiral.

Hel"i*coid, n. (Geom.)

Definition: A warped surface which may be generated by a straight line moving in such a manner that every point of the line shall have a uniform motion in the direction of another fixed straight line, and at the same time a uniform angular motion about it.

Source: Webster’s Unabridged Dictionary 1913 Edition

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