Is “Submicroscopic” a Scrabble word?
Yes
SUBMICROSCOPIC
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 Submicroscopic
adjective
1.Smaller than microscopic; too small to be seen even with a microscope