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anhedral Syllabification: an·he·dral
Pronunciation: /anˈhēdrəl/

Definition of anhedral in English:


Crystallography (Of a crystal) having no plane faces.
Example sentences
  • The pyroxenoid occurs as granular masses of small anhedral crystals associated with manganoan magnetite.
  • Microcline is a common constituent of the intermediate zone, occurring as anhedral crystals to 60 cm.
  • Here, olivine (peridot when gemmy) grains or anhedral crystals weather out of basaltic lava.


Aeronautics Back to top  
Downward inclination of an aircraft’s wing, or the angle of this. Compare with dihedral.
Example sentences
  • Some gliders have large amounts of anhedral to improve their handling and with this power steering addition the amount of anhedral may be reduced, making the glider more stable to fly and not requiring constant control inputs.
  • The five-bladed main rotor is fully composite, with a composite spar, multiple box structure and anhedral tipcaps.
  • I've found that hang gliders exhibit a negative coupling between yaw and roll - for example a right yaw will create a left roll - presumably due to anhedral.


Late 19th century (as an adjective): from an-1 'not' + -hedral (see -hedron).

Words that rhyme with anhedral

cathedral, dihedral, tetrahedral

Definition of anhedral in:

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