Helicoid
Pronunciation : Hel"i*coid
Part of Speech : a.
Etymology : [Gr. h?lico?de. See Helix.]
Definition : 1. Spiral; curved, like the spire of a univalve shell.
2. (Zo?l.)
Defn: Shaped like a snail shell; pertaining to the Helicid?, or Snail family. Helicoid parabola (Math.), the parabolic spiral.
Source : Webster's Unabridged Dictionary, 1913
Pronunciation : Hel"i*coid
Part of Speech : n.
Definition : Defn: 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.
(Geom.)
Source : Webster's Unabridged Dictionary, 1913