helicoid Meaning, Definition & Usage
Hel"i*coid adjective
Etymology
Gr. , , spiral + shape: cf. F.Definitions
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Spiral; curved, like the spire of a univalve shell. -
(Zoöl.) Shaped like a snail shell; pertaining to the Helicidæ , or Snail family.
Hel"i*coid noun
Definitions
(Geom.) 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.
