\Sylph\, n. [F. sylphe, m., fr. Gr. ? a kind of grub,
beetle, or moth; -- so called by Paracelsus.]
1. An imaginary being inhabiting the air; a fairy.
2. Fig.: A slender, graceful woman.
3. (Zo["o]l.) Any one of several species of very brilliant
   South American humming birds, having a very long and
   deeply-forked tail; as, the blue-tailed sylph ({Cynanthus
   cyanurus}).