\Strid`u*la"tion\, n.
The act of stridulating. Specifically: (Zo["o]l.)
(a) The act of making shrill sounds or musical notes by
    rubbing together certain hard parts, as is done by the
    males of many insects, especially by Orthoptera, such as
    crickets, grasshoppers, and locusts.
(b) The noise itself.
Note: The crickets stridulate by rubbing together the strong
      nervures of the fore wings. Many grasshoppers
      stridulate by rubbing the hind legs across strong
      nervures on the fore wings. The green grasshoppers and
      katydids stridulate by means of special organs at the
      base of the fore wings.