Yes, FOMITE is a Scrabble word!

Letter values in Scrabble US: F 4, O 1, M 3, I 1, T 1, E 1.

Is it a valid word?

FOMITE is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

any inanimate object (as a towel or money or clothing or dishes or books or toys etc.) that can transmit infectious agents from one person to another