dihedral

UK:**UK and possibly other pronunciationsUK and possibly other pronunciations/daɪˈhiːdrəl/US:USA pronunciation: respellingUSA pronunciation: respelling(dī hē′drəl)


WordReference Random House Unabridged Dictionary of American English © 2026
di•he•dral  (dī hē′drəl),USA pronunciation adj. 
  1. Mathematicshaving or formed by two planes.
  2. Mathematicsof or pertaining to a dihedron.

n. 
  1. Mathematicsdihedron.
  2. Aeronauticsthe 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.
  • di-1 + -hedral 1790–1800

Collins Concise English Dictionary © HarperCollins Publishers::
dihedral /daɪˈhiːdrəl/ adj
  1. having or formed by two intersecting planes; two-sided
 n
  1. Also called: dihedron, dihedral angle the figure formed by two intersecting planes
  2. the US name for corner
  3. the upward inclination of an aircraft wing in relation to the lateral axis
    Compare anhedral
'dihedral' also found in these entries (note: many are not synonyms or translations):
anhedral - dihedron - dihedral angle

Forum discussions with the word(s) "dihedral" in the title:


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