Mongolian /mɒŋˈɡoʊliən/adjective 3noun 3forms 3 adjective3 •Of or relating to Mongolia or its peoples, languages, or cultures.He had a Sister, which according to the Mongalian custom lived in the devoted spiritual state. — 1706 •(old-fashioned) Resembling or having some of the characteristic physical features of the mongoloid racial type.The Mongolian variety inhabits eastern Asia, Finland, and Lapland in Europe, and includes the Esquimaux of North America. — 1828 •(offensive, no longer used) Relating to or affected with Down syndrome.The Mongolian type of idiocy occurs in more than ten per cent. of the cases which are presented to me. — 1866 noun3 •A native or inhabitant of Mongolia.The Cossac there, The Calmuc, and Mungalian, round the bales In crowds resort. — 1757 •the main language of Mongolia, used officially there and also spoken in some areas in the north of ChinaKhalka […] Mongolian possesses seven vowels and twenty consonants. — 1926 •a person seen by older theories of race as belonging to a group with the physical features common in East AsiaA particular individual which the latter considered a Mongolian and the former assures us is an Ethiopian. — 1823 formsMongolians · more Mongolian · most Mongolian