Source : Webster's Revised Unabridged Dictionary (1913)

Hyphenated \Hy"phen*a`ted\, a.
   United by hyphens; hyphened; as, a hyphenated or hyphened
   word.

Source : WordNet®

hyphenated
     adj : (of words) combined by means of a hyphen to form a unit;
           "hyphenated words"; "many femninists have chosen
           hyphenated names their children--today's so-called
           hyphenated babies"; "multiculturalism nurtures respect
           for hyphenated identities"