Yes, TURMERIC is a Scrabble word!

Letter values in Scrabble US: T 1, U 1, R 1, M 3, E 1, R 1, I 1, C 3.

Is it a valid word?

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

widely cultivated tropical plant of India having yellow flowers and a large aromatic deep yellow rhizome; source of a condiment and a yellow dye
ground dried rhizome of the turmeric plant used as seasoning

Also: curcuma longa, curcuma domestica.