juveniliaPronunciation: /ˌdʒuːvəˈnɪlɪə/Definition of juvenilia noun works produced by an author or artist while still young: from the juvenilia onward, certain themes were prominent five of Eliot’s published juveniliaOrigin: early 17th century: from Latin, neuter plural of juvenilis (see juvenile)juvenilia in other Oxford dictionaries Definition of juvenilia in the US English dictionary