Like the bite of a king cobra (6)
I believe the answer is:
lethal
(Other definitions for lethal that I've seen before include "Deadly, potentially fatal" , "Able to cause death" , "Vicious" , "Killing" , "describing a killer?" .)
I believe the answer is:
lethal
(Other definitions for lethal that I've seen before include "Deadly, potentially fatal" , "Able to cause death" , "Vicious" , "Killing" , "describing a killer?" .)