The Collaborative International Dictionary of English v.0.48:

Freud \Freud\ prop. n.
   Sigmund Freud, the founder of the practise of psychoanalysis.
   Born 1856, died 1939.
   [WordNet 1.5]

WordNet (r) 3.0 (2006):

Freud
    n 1: Austrian neurologist who originated psychoanalysis
         (1856-1939) [syn: Freud, Sigmund Freud]