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Commentary Index | Return to PrayerRequest.com | DownloadNoah Webster Dictionary (1913 edition): Helicoid
Subjects in this Topic:
(1):
(a.) Shaped like a snail shell; pertaining to the Helicidae, or Snail family.
(2):
(n.) 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.
(3):
(a.) Spiral; curved, like the spire of a univalve shell.