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Rhad·a·man·thusalso Rhad·a·man·thys (răd′ə-măn′thəs)
n. Greek Mythology
A son of Zeus and Europa who, in reward for his exemplary sense of justice, was made a judge of the underworld after his death.
or Rhad•a•man•thus(ˌræd əˈmæn θəs)
(in Greek myth) a son of Zeus and Europa, rewarded for his stern justice by being made a judge of the dead in the underworld.
Rhad`a•man′thine (-θɪn, -θaɪn) adj.