- a hypothetical phylum of languages of which the principal members are the IndoEuropean, Semitic, Altaic, and Dravidian families诺斯特拉语群（一个假想的语群, 主要包括印欧语、闪族语、阿尔泰语和德拉威语语族）。
- of or relating to this language phylum（与）诺斯特拉语群（有关）的。
词源
1960s: from German nostratisch, based on Latin nostras, nostrat- 'of our country'.