The Collaborative International Dictionary of English v.0.48:

Indo-Aryan \In`do-Ar"yan\, a.
   Pertaining to the Indo-Aryans, or designating, or of, the
   Aryan languages of India.
   [Webster 1913 Suppl.]

The Collaborative International Dictionary of English v.0.48:

Indo-Aryan \In`do-Ar"yan\, n.
   A member of one of the native races of India of Aryan speech
   and blood, characterized by tall stature, dolichocephaly,
   fair complexion with dark hair and eyes, plentiful beard, and
   narrow and prominent nose.
   [Webster 1913 Suppl.]

WordNet (r) 3.0 (2006):

Indo-Aryan
    adj 1: of or relating to the former Indo-European people; "Indo-
           European migrations" [syn: Indo-European, Indo-Aryan,
           Aryan]
    n 1: a branch of the Indo-Iranian family of languages [syn:
         Indic, Indo-Aryan]