The Collaborative International Dictionary of English v.0.48:

Conjuror \Con*ju"ror\, n. (Law)
   One bound by a common oath with others. [Obs.]
   [1913 Webster]

WordNet (r) 3.0 (2006):

conjuror
    n 1: someone who performs magic tricks to amuse an audience
         [syn: magician, prestidigitator, conjurer,
         conjuror, illusionist]
    2: a witch doctor who practices conjury [syn: conjurer,
       conjuror, conjure man]