- the period in history initiated by the first use of the atomic bomb and characterized by atomic energy as a military, political, and industrial factor.
Origin of atomic age
First recorded in 1940–45
Also called nuclear age.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- the atomic age the current historical period, initiated by the development of the first atomic bomb towards the end of World War II and now marked by a balance of power between nations possessing the hydrogen bomb and the use of nuclear power as a source of energy