The DICT Development Group

  Slav \Slav\ (sl[aum]v or sl[a^]v), n.; pl. Slavs. [A word
     originally meaning, intelligible, and used to contrast the
     people so called with foreigners who spoke languages
     unintelligible to the Slavs; akin to OSlav. slovo a word,
     slava fame, Skr. [,c]ru to hear. Cf. Loud.] (Ethnol.)
     One of a race of people occupying a large part of Eastern and
     Northern Europe, including the Russians, Bulgarians,
     Roumanians, Servo-Croats, Slovenes, Poles, Czechs, Wends or
     Sorbs, Slovaks, etc. [Written also Slave, and Sclav.]
     [1913 Webster]

  Slav
      adj 1: speaking a Slavic language; "the Slav population of
             Georgia"
      n 1: any member of the people of eastern Europe or Asian Russia
           who speak a Slavonic language