The Collaborative International Dictionary of English v.0.48:

Seduce \Se*duce"\, v. t. [imp. & p. p. Seduced; p. pr. & vb.
   n. Seducing.] [L. seducere, seductum; pref. se- aside +
   ducere to lead. See Duke.]
   1. To draw aside from the path of rectitude and duty in any
      manner; to entice to evil; to lead astray; to tempt and
      lead to iniquity; to corrupt.
      [1913 Webster]

            For me, the gold of France did not seduce. --Shak.
      [1913 Webster]

   2. Specifically, to induce to engage in sexual intercourse.
      [PJC]

   Syn: To allure; entice; tempt; attract; mislead; decoy;
        inveigle. See Allure.
        [1913 Webster]

WordNet (r) 3.0 (2006):

seduce
    v 1: induce to have sex; "Harry finally seduced Sally"; "Did you
         score last night?"; "Harry made Sally" [syn: seduce,
         score, make]
    2: lure or entice away from duty, principles, or proper conduct;
       "She was seduced by the temptation of easy money and started
       to work in a massage parlor"