kryptonite

(redirected from Green kryptonite)
Also found in: Medical.

kryp·ton·ite

 (krĭp′tə-nīt′)
n. Slang
Something that presents a particular threat to one that is otherwise powerful: Immigration reform turned out to be the senator's kryptonite.

[After Kryptonite, a fictional radioactive mineral (the presence of which weakens the superhero Superman) appearing in Superman comics from 1949 onwards : Krypton, the home planet of Superman where Kryptonite was once found before being scattered in the universe by the planet's destruction (named by American comics writer Jerry Siegel (1914-1996), perhaps after the element krypton) + -ite.]

kryptonite

(ˈkrɪptəˌnaɪt)
n
informal something that renders a person or thing helpless: football movies are box-office kryptonite.
[C20: from the fictional substance to which the hero is vulnerable in the comic strip Superman]
Translations
kryptonit
Kryptonit
kryptonita
kryptonite
kriptonit
kryptonite
kryptonita
kriptonită
kryptonit
kryptonit
References in periodicals archive ?
Since he uses Green Kryptonite as his energy source, Metallo is one of Superman's oldest foes in DC Comics lore.
At first, he was vulnerable to green Kryptonite, but with endless issues to churn out, and in need of variety, the editors added five other colors that each had a unique effect on him.
After Sir Freddie Goodwin and his multi-million-pound reward for failure, greed is our green Kryptonite.