Source : Webster's Revised Unabridged Dictionary (1913)

Eyelash \Eye"lash`\, n.
   1. The fringe of hair that edges the eyelid; -- usually in
      the pl.

   2. A hair of the fringe on the edge of the eyelid.

Source : WordNet®

eyelash
     n : any of the short curved hairs that grow from the edges of
         the eyelids [syn: {lash}, {cilium}]