Yes, FOETUSES is a Scrabble word!

Letter values in Scrabble US: F 4, O 1, E 1, T 1, U 1, S 1, E 1, S 1.

Is it a valid word?

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

an unborn or unhatched vertebrate in the later stages of development showing the main recognizable features of the mature animal