dihedral

[ dahy-hee-druh l ]
/ daɪˈhi drəl /

adjective

having or formed by two planes.
of or relating to a dihedron.

noun

dihedron.
Aeronautics. the angle at which the right and left wings or the halves of any other horizontal surface of an airplane or the like are inclined upward or downward.

Origin of dihedral

First recorded in 1790–1800; di-1 + -hedral

Words nearby dihedral

digraph, digress, digression, digressive, digs, dihedral, dihedral angle, dihedral group, dihedron, diheterozygote, dihua

Example sentences from the Web for dihedral

British Dictionary definitions for dihedral

dihedral
/ (daɪˈhiːdrəl) /

adjective

having or formed by two intersecting planes; two-sided a dihedral angle

noun

Also called: dihedron, dihedral angle the figure formed by two intersecting planes
the US name for corner (def. 2)
the upward inclination of an aircraft wing in relation to the lateral axis Compare anhedral

Scientific definitions for dihedral

dihedral
[ dī-hē′drəl ]

Formed by a pair of planes or sections of planes that intersect.