mongolianism vs mongolism

mongolianism and mongolism both are nouns.

Word	Noun	Adjective	Verb	Adverb
mongolianism	Yes	No	No	No
mongolism	Yes	No	No	No

As nouns, mongolianism and mongolism are synonyms defined as:

mongolianism and mongolism: a congenital disorder caused by having an extra 21st chromosome; results in a flat face and short stature and mental retardation

Other synonyms of mongolianism include Down's syndrome, Down syndrome, trisomy 21.

mongolianism (noun)	mongolism (noun)
a congenital disorder caused by having an extra 21st chromosome; results in a flat face and short stature and mental retardation	a congenital disorder caused by having an extra 21st chromosome; results in a flat face and short stature and mental retardation