The phrase "decapitated head" means a head that has been completely separated from the body, usually by cutting off the neck.
Sentences with «decapitated head»
Decapitating the head of the Kobayashi clan, he single - swordedly saved the species. (parentpreviews.com)
I am not sure at what point it was that I realised just how good Divinity Original Sin II is, but somewhere between swapping war stories with rat (of the Rattus norvegicus persuasion) with delusions of grandeur, and my Elvin companion devouring the face of a recently decapitated head in order to acquire his memories I thought to myself, «This game might be something rather special.» (gameplanet.com.au)
Yup, Zombie Deadpool's decapitated head makes its glorious return, and he's tired of being carried around everywhere. (newsarama.com)