| 释义 | 
		an·ni·hi·la·tion \ ̷ ̷ˌ ̷ ̷ ̷ ̷ˈlāshən\ noun (-s) Etymology: Late Latin annihilation-, annihilatio, from annihilatus + Latin -ion, -io -ion 1.  : the act of annihilating or state of being annihilated  < the annihilation of the individual is the worst perversity of man — W.L.Sullivan > 2.  : cessation of being : nothingness  < sentient beings are doomed to complete annihilation — C.R.Darwin > 3.  : the process whereby an electron and a positron unite and consequently lose their identity as particles transforming themselves into short gamma rays — see annihilation radiation |