dihedral

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noun di·he·dral \(ˌ)dī-ˈhē-drəl\

Definition of dihedral

  1. 1 :  dihedral angle

  2. 2 :  the angle between an aircraft supporting surface (such as a wing) and a horizontal transverse line

Circa 1911

First Known Use of dihedral

circa 1911

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