Source : Webster's Revised Unabridged Dictionary (1913)

Burnstickle \Burn"stic`kle\, n. (Zo["o]l.)
   A stickleback ({Gasterosteus aculeatus}).

Source : WordNet®

Gasterosteus aculeatus
     n : of rivers and coastal regions [syn: {three-spined
         stickleback}]