conformation

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con·for·ma·tion / ˌkänfôrˈmāshən; -fər-/ • n. the shape or structure of something, esp. an animal. ∎  Chem. any of the spatial arrangements that the atoms in a molecule may adopt and freely convert between, esp. by rotation about individual single bonds.Compare with configuration.DERIVATIVES: con·for·ma·tion·al / -shənl/ adj.