they calibrate the effects of atom bombs in megadeaths.
Examples of megadeath
megadeath
The book helped popularize the term megadeath, which Kahn coined in 1953.
From the en.wikipedia.org
The wrath of God becomes the dread mushroom and megadeath and firestorm-totality, cessation.
From the time.com
I'd rather live with mega-Communism than live to see megadeath.
From the time.com
He prefers jaunty terms like multicide, megadeath and hemoclysm to sober, morally charged ones like genocide.
From the kentucky.com
After Sputnik, megadeath would arrive in minutes by rocket, non-negotiably, and in such quantities that global annihilation looked on the cards.
From the economist.com
More examples
The death of a million people; "they calibrate the effects of atom bombs in megadeaths"
Megadeth is an American heavy metal band from Los Angeles, California, formed in 1983. Founded by guitarist/vocalist Dave Mustaine and bassist Dave Ellefson following Mustaine's departure from Metallica, the band has since released twelve studio albums, three live albums, two EPs, twenty six ...
(The Megadeaths) Pink Floyd were an English rock band who earned international recognition for their psychedelic rock music in the late 1960s, and for their progressive rock music from the 1970s onward. ...
One million deaths, especially as a unit of measure in reference to nuclear warfare