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1. Oxford American Dictionary

   dihedral

   • IPA[dīˈhēdrəl]

   美式

   • adj.
     having or contained by two plane faces
   • n.
     an angle formed by two plane faces.；inclination of an aircraft's wing from the horizontal, especially upward away from the fuselage.

   • noun: dihedral, plural noun: dihedrals

2. • 釋義

   adj.

   形容詞

   • 1. having or contained by two plane faces a dihedral angle

   n.

   名詞

   • 1. an angle formed by two plane faces.
   • ▪ inclination of an aircraft's wing from the horizontal, especially upward away from the fuselage.
   • ▪ a place where two planes of rock meet at an angle of between 60° and 120°.
3. • 更多解釋

   dihedral

   • IPA[dʌɪˈhiːdr(ə)l]

   英式

   • adj.
     having or contained by two plane faces: a dihedral angle
   • n.
     an angle formed by two plane faces.

   Oxford Dictionary