uxoricide

from WordNet (r) 3.0 (2006)

uxoricide
    n 1: a husband who murders his wife
    2: the murder of a wife by her husband

from The Collaborative International Dictionary of English v.0.48

Uxoricide \Ux*or"i*cide\, n. [L. uxor wife + caedere to kill.]
   [1913 Webster]
   1. The murder of a wife by her husband.
      [1913 Webster]

   2. One who murders his wife.
      [1913 Webster]