Definition of megaton noun from the Oxford Advanced Learner's Dictionary

 

megaton

 noun
(also megatonne)noun
BrE BrE//ˈmeɡətʌn//
 
; NAmE NAmE//ˈmeɡətʌn//
 
 
jump to other results
a unit for measuring the power of an explosive, equal to one million tons of TNT a one megaton nuclear bomb
See the Oxford Advanced American Dictionary entry: megaton