a square in central London where there is a memorial to Admiral Nelson

3.    (in   a   fairground.)   a   large   mechanical amusement machine, which turns round and plays music, usually with horses to sit on which move up and down. Also called merry-go-round (NOTE: The US term is carousel.) ■ adj not direct O The taxi took a very roundabout route to get to Trafalgar Square. Synonym indirect