Index of English words, starting with "he"

(1) - Helical (a.) Of or pertaining to, or in the form of, a helix; spiral; as, a helical staircase; a helical spring.

(1) - Helicoid (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.
(2) - Helicoid (a.) Shaped like a snail shell; pertaining to the Helicidae, or Snail family.
(3) - Helicoid (a.) Spiral; curved, like the spire of a univalve shell.

(1) - Helicoidal (a.) Same as Helicoid.