Found 1 items, similar to helicoid.
English → English (gcide) Definition: Helicoid Helicoid \Hel"i*coid\, a. [Gr. ?; ?, ?, spiral + ? shape: cf. F. h['e]lico["i]de. See Helix.] [1913 Webster] 1. Spiral; curved, like the spire of a univalve shell. [1913 Webster] 2. (Zo["o]l.) Shaped like a snail shell; pertaining to the Helicid[ae], or Snail family. [1913 Webster] Helicoid parabola (Math.), the parabolic spiral. [1913 Webster] Helicoid \Hel"i*coid\, n. (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. [1913 Webster]