Dictionary.com
Thesaurus.com

Scotland Yard

American  

noun

  1. a short street in central London, England: formerly the site of the London police headquarters, which were removed 1890 to a Thames embankment (New Scotland Yard ).

  2. the metropolitan police of London, especially the branch engaged in crime detection.


Scotland Yard British  

noun

  1. Official name: New Scotland Yard.  the headquarters of the police force of metropolitan London, controlled directly by the British Home Office and hence having certain national responsibilities

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of Scotland Yard

First recorded in 1860–65