galloper

noun6

1. •
   One who gallops.

   • The lancers chafing in the right gorge had thrice dispatched their only subaltern as galloper to report on the progress of affairs. — 1898
2. •
   A racehorse.

   • The Hussler's trainer, Ross McDonald, is confident Australia's champion galloper will win the clashes, despite Weekend Hussler never having competed over 1000m before. — 2009
3. •
   A carousel or roundabout (especially in the plural)
4. •
   An aide-de-camp.
5. •
   A carriage on which very small guns were formerly mounted, the gun resting on the shafts, without a limber.
6. •
   (Australia) The Chinamanfish, a type of snapper