Of or pertaining to the Altai, a mountain chain in Central Asia. [1913 Webster]
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]
altaic, adj.
of or pertaining to the Altaic languages. [WordNet 1.5]