Source : Webster's Revised Unabridged Dictionary (1913)

Tipula \Tip"u*la\, n.; pl. L. {Tipul[ae]}, E. {Tipulas}. [L.,
   the water spider, or water spinner.] (Zo["o]l.)
   Any one of many species of long-legged dipterous insects
   belonging to {Tipula} and allied genera. They have long and
   slender bodies. See {Crane fly}, under {Crane}.