THYROXIN

Yes, THYROXIN is a Scrabble word!

Letter values in Scrabble US: T 1, H 4, Y 4, R 1, O 1, X 8, I 1, N 1.T 1 · H 4 · Y 4 · R 1 · O 1 · X 8 · I 1 · N 1

Is it a valid word?

• Scrabble US: valid, 21 points.Scrabble USYour dictionary · Change (go to the dictionary switch)Valid · 21 points
• Scrabble UK: valid, 21 points. Make Scrabble UK your dictionary.Scrabble UKYour dictionary · ChangeValid · 21 points
• Words with Friends: valid, 20 points. Make Words with Friends your dictionary.Words with FriendsYour dictionary · ChangeValid · 20 points