What is a nine letter word for lack of oxygen?

"Suffocate" means to suffer or to die from a lack of oxygen and has 9 letters. Nine letter Word for lack of oxygen would be "deoxidize"

* It is a verb and it means remove oxygen; (Chemistry) cause a substance to undergo a loss of oxygen (also deoxidise)

* Webster's dictionary defines this Word as "To deprive of oxygen;"
hypoxia