Is “Prion” a Scrabble word?
Yes
PRION
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 Prion
/ˈpɹaɪən/
noun
1.A self-propagating misfolded conformer of a protein that is responsible for a number of diseases that affect the brain and other neural tissue.