adjective Af·to·ni·an \(ˈ)af-¦tō-nē-ən\

Definition of Aftonian

  1. :  belonging to the first interglacial interval during the glacial epoch in North America

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Origin and Etymology of aftonian

Afton, town in Iowa + English -ian

First Known Use: 1895

Seen and Heard

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a brief usually trivial fact

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