scooter n 1: a motorboat resembling a motor scooter [syn: {water scooter}, {sea scooter}, {scooter}] 2: child's two-wheeled vehicle operated by foot 3: a wheeled vehicle with small wheels and a low-powered gasoline engine geared to the rear wheel [syn: {motor scooter}, {scooter}] 4: a sailing vessel with runners and a cross-shaped frame; suitable for traveling over ice [syn: {iceboat}, {ice yacht}, {scooter}] 5: large black diving duck of northern parts of the northern hemisphere [syn: {scoter}, {scooter}]