Is “Miasmas” a Scrabble word?
Yes
MIASMAS
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Miasmas
noun
1.A noxious atmosphere or influence.
2.A noxious atmosphere or emanation once thought to originate from swamps and waste, and to cause disease.