Di*he"dral (?), a. 1.
Of a kite or an aëroplane, having wings that make with one
another a dihedral angle, esp. when the angle between the upper sides
is less than 180°.
2. (Aëronautics) Of wing pairs,
inclined at an upward angle to each other.
Di*he"dral (?), a. [Gr. di-
= di`s- twice + &?; a seat, bottom, base, fr. &?; to sit.
Cf. Diedral.] Having two plane faces; as, the
dihedral summit of a crystal.
Dihedral angle, the angular space contained
between planes which intersect. It is measured by the angle made by
any two lines at right angles to the two planes.
Di*he"dral (?), a. 1.
Of a kite or an aëroplane, having wings that make with one
another a dihedral angle, esp. when the angle between the upper sides
is less than 180°.
2. (Aëronautics) Of wing pairs,
inclined at an upward angle to each other.
