Is “Morphophoneme” a Scrabble word?
Yes
MORPHOPHONEME
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 Morphophoneme
noun
1.One of the units of which the underlying representations of morphemes are composed.