Yes, SALTATIONS is a Scrabble word!

Letter values in Scrabble US: S 1, A 1, L 1, T 1, A 1, T 1, I 1, O 1, N 1, S 1.

Is it a valid word?

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

(geology) the leaping movement of sand or soil particles as they are transported in a fluid medium over an uneven surface
(genetics) a mutation that drastically changes the phenotype of an organism or species
an abrupt transition
taking a series of rhythmical steps (and movements) in time to music
a light, self-propelled movement upwards or forwards

Not playable in Scrabble US: TERPSICHORE.