The Collaborative International Dictionary of English v.0.48:

Turanian \Tu*ra"ni*an\, pr. a. [From Tur, the name, in Persian
   legendary history, of one of the three brothers from whom
   sprang the races of mankind.]
   Of, pertaining to, or designating, an extensive family of
   languages of simple structure and low grade (called also
   Altaic, Ural-Altaic, and Scythian), spoken in the
   northern parts of Europe and Asia and in Central Asia; of
   pertaining to, or designating, the people who speak these
   languages.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Altaian \Al*ta"ian\, Altaic \Al*ta"ic\, a. [Cf. F. alta["i]que.]
   Of or pertaining to the Altai, a mountain chain in Central
   Asia.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Altaic \Altaic\ n.
   a collective term for a group of related linguistic families
   including the Turkic, Tungusik and Mongolian languages,
   spoken over a broad area from southeastern Europe and Asia,
   as far east as the Pacific.
   [PJC]

The Collaborative International Dictionary of English v.0.48:

Altaic \Altaic\ adj.
   1. of or pertaining to the Altaic languages. Altaic languages
      [WordNet 1.5]

WordNet (r) 3.0 (2006):

Altaic
    adj 1: of or pertaining to or written in Altaic
    n 1: any member of the peoples speaking a language in the Altaic
         language group
    2: a group of related languages spoken in Asia and southeastern
       Europe [syn: Altaic, Altaic language]