Source : WordNet®

Simpson
     n 1: United States divorcee whose marriage to Edward VIII created
          a constitutional crisis leading to his abdication [syn:
          {Mrs. Simpson}, {Wallis Warfield Simpson}, {Wallis
          Warfield Windsor}, {Duchess of Windsor}]
     2: Scottish obstetrician and surgeon who pioneered in the use
        of ether and discovered the anesthetic effects of
        chloroform (1811-1870) [syn: {Sir James Young Simpson}]