Mongolian
1 of 2adjective
Mon·go·lian män-ˈgōl-yən 
mäŋ-,
-ˈgō-lē-ən
1
: of, relating to, or constituting Mongolia, the Mongolian People's Republic, the Mongols, or the Mongolian language
2
or mongolian, dated, now offensive : of, relating to, or affected with Down syndrome
Mongolian
2 of 2noun
plural Mongolians
1
a
: the language of the Mongol people
b
: a family of Altaic languages that includes the languages of the Mongols and the Kalmucks
2
a
: mongol sense 1
b
: a member of a group of people formerly considered to constitute a race (see race entry 1 sense 1a) of humans having Asian ancestry and classified according to physical traits (such as the presence of an epicanthal fold)
c
: a native or inhabitant of Mongolia
Word History
First Known Use
Adjective
1706, in the meaning defined at sense 1
Noun
1757, in the meaning defined at sense 2a