a member of a British hereditary order of honor, ranking below the barons and made up of commoners, designated by Sir before the name and Baronet, usually abbreviated Bart., after: Sir John Smith, Bart.
A man holding a British hereditary title of honor reserved for commoners, ranking immediately below the barons and above all orders of knighthood except the Garter.
Abbr. Bart. or Bt. Used as the title for such a man.
[Middle English, diminutive of baron, baron; see baron.]