HELICOIDS

Noun

helicoids

plural of helicoid

Source: Wiktionary


HELICOID

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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Word of the Day

11 May 2025

MALLET

(noun) a light drumstick with a rounded head that is used to strike such percussion instruments as chimes, kettledrums, marimbas, glockenspiels, etc.


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