Is “Actin” a Scrabble word?
Yes
ACTIN
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 Actin
noun
1.A globular structural protein that polymerizes in a helical fashion to form an actin filament (or microfilament).
2.One of the six isoforms of actin.