1) Ship type 
A Motorsailer, aka `motorsailor` (US), is a type of sailing vessel, typically a pleasure yacht, that derives propulsion from its sails and engine(s) in equal measure. Whereas most sailing yachts above a certain size will usually have an inboard engine, they will not be `motorsailers`, as their principal source of power is sail, and the engine ...
A combination of sailboat and motorboat; a compromise, neither the ideal sailboat or powerboat.