noun.
One of many different aquatic heteropterous insects with long legs which glide over the surface of water as if skating, as Gerridæ; or Hydrobatidæ, etc.
the GNU version of the Collaborative International Dictionary of English
noun.
One who skates.
noun.
Any one of numerous species of hemipterous insects belonging to Gerris, Pyrrhocoris, Prostemma, and allied genera. They have long legs, and run rapidly over the surface of the water, as if skating.