Etymology

paliperidone

P3A1L1I1P3E1R1I1D2O1N1E1

Today it means: 9-hydroxyrisperidone, an atypical antipsychotic drug. Full definition →

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The story

From pali- (of unknown origin) + -peridone (“risperidone derivative”).

Etymology from Wiktionary, CC BY-SA 4.0.