Of or relating to both the Indo-European and the Uralic languages; especially, of or pertaining to a proposed language family containing both the Indo-European and the Uralic languages.
2007, Carlos Quiles, A Grammar of Modern Indo-European, Indo-European Association, →ISBN, page 38:
Perhaps the most widely accepted proposal is of an Indo-Uralic family, encompassing PIE and Proto-Uralic.
2008, Adam Hyllested, “Internal reconstruction vs. external comparison: the case of the Indo-Uralic laryngeals”, in Jens Elmegård Rasmussen, Thomas Olander, editors, Internal Reconstruction in Indo-European: Methods, Results, and Problems, Museum Tusculanum Press, published 2009, →ISBN, page 111: