Is “Tubulin” a Scrabble word?
Yes
TUBULIN
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 Tubulin
noun
1.Any of a group of proteins used as the material for microtubules
2.Specifically, the dimer of α-tubulin and β-tubulin