Found 1 items, similar to Helicoid parabola.
English → English (gcide) Definition: Helicoid parabola 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]