A one-wheeled attachment to the side of a motorcycle to allow for a separate seat for a passenger or cargo space. / A cocktail made with cognac (or brandy), triple sec liqueur, and lemon juice.

plural of sidecar

plural of sidecar file

(computing) A file that stores data, such as metadata, which is not supported by the source file format.

(motor racing) A version of motocross with dirtbikes equipped with sidecars, and passengers riding them.