miasm vs miasma

miasm and miasma both are nouns.

Word	Noun	Adjective	Verb	Adverb
miasm	Yes	No	No	No
miasma	Yes	No	No	No

As nouns, miasm and miasma are synonyms defined as:

miasm and miasma: unhealthy vapors rising from the ground or other sources

As nouns, miasm and miasma are synonyms defined as:

miasm (noun)	miasma (noun)
unhealthy vapors rising from the ground or other sources	unhealthy vapors rising from the ground or other sources
an unwholesome atmosphere	an unwholesome atmosphere