DIATHERMY

Yes, DIATHERMY is a Scrabble word!

Letter values in Scrabble US: D 2, I 1, A 1, T 1, H 4, E 1, R 1, M 3, Y 4.D 2 · I 1 · A 1 · T 1 · H 4 · E 1 · R 1 · M 3 · Y 4

Is it a valid word?

• Scrabble US: valid, 18 points.Scrabble USYour dictionary · Change (go to the dictionary switch)Valid · 18 points
• Scrabble UK: valid, 18 points. Make Scrabble UK your dictionary.Scrabble UKYour dictionary · ChangeValid · 18 points
• Words with Friends: valid, 17 points. Make Words with Friends your dictionary.Words with FriendsYour dictionary · ChangeValid · 17 points