Yes, AUTOGYRO is a Scrabble word!

Letter values in Scrabble US: A 1, U 1, T 1, O 1, G 2, Y 4, R 1, O 1.

Is it a valid word?

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

an aircraft that is supported in flight by unpowered rotating horizontal wings (or blades); forward propulsion is provided by a conventional propeller