Is “Toxin” a Scrabble word?
Yes
TOXIN
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 Toxin
/ˈtɒksɪn/
noun
1.A toxic or poisonous substance produced by the biological processes of biological organisms.