iceboat
- n a ship with a reinforced bow to break up ice and keep channels open for navigation
- n a sailing vessel with runners and a cross-shaped frame; suitable for traveling over ice
- Unseen cracks in the ice can capsize an iceboat in the flick of an eyelash; just clipping a stray beer can left by some thoughtless ice fisherman can send the sensitive craft .
- An iceboat travels fastest across the windon what sailors call "a reach.