MONGOLIAN
Mongol, Mongolian
(adjective) of or relating to the region of Mongolia or its people or their languages or cultures; “the Mongol invaders”; “a Mongolian pony”; “Mongolian syntax strongly resembles Korean syntax”
Mongolian
(adjective) of or relating to the modern Mongolian People’s Republic; “the Mongolian embassy”
Mongolian, Mongolic, Mongolic language
(noun) a family of Altaic language spoken in Mongolia
Mongol, Mongolian
(noun) a member of the nomadic peoples of Mongolia
Source: WordNet® 3.1
Etymology
Adjective
Mongolian (comparative more Mongolian, superlative most Mongolian)
Of or relating to Mongolia or its peoples, languages, or cultures = Mongol.
Anthropology. Resembling or having some of the characteristic physical features of the Mongoloid racial type = Mongoloid.
(now rare, offensive) Designating or affected with Down syndrome = Mongol.
Noun
Mongolian (countable and uncountable, plural Mongolians)
(countable) A native or inhabitant of Mongolia = Mongol.
(uncountable) A group of Altaic languages from Mongolia, specifically Khalkha, the official language of Mongolia.
A person of Mongoloid physical type; a Mongoloid.
Source: Wiktionary
Mon*go"li*an, a.
Definition: Of or pertaining to Mongolia or the Mongols.
– n.
Definition: One of the Mongols.
Source: Webster’s Unabridged Dictionary 1913 Edition