Share this entry

Share this page

trihedral

Line breaks: tri|he¦dral
Pronunciation: /trʌɪˈhiːdr(ə)l
 
/

Definition of trihedral in English:

adjective

(Of a solid figure or body) having three sides or faces (in addition to the base or ends); triangular in cross section.
Example sentences
  • This German-made touring kayak uses a trihedral hull design to gain a unique balance of glide speed, carving agility, carrying capacity, stability, and comfort.
  • It is fascinating to look at the dihedral angles in trihedral acrons and compare those acrons which have been resolved with those that have not.
  • These results clearly demonstrate that the trihedral twist reflector of the invention produces an acceptable and usable cross polarized echo over a wide range of angles and frequencies.

noun

Back to top  
A trihedral figure.
Example sentences
  • One of the most interesting novelties of the volume was the so-called ‘moving trihedrals’ for twisted curves as well as surfaces so freely used in writings of Darboux and others.
  • Radar corner reflectors are simple trihedrals of aluminium that strongly reflect the radar signal back to the satellite.
  • The right-left ambiguity ratio, measured using 5-m trihedrals on both sides of the flight track, is about 10 dB for a single antenna element on receive.

Origin

late 18th century: from Greek tri- 'three' + hedra 'base' + -al.

Definition of trihedral in:

Share this entry

Share this page

 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day tenebrous
Pronunciation: ˈtenəbrəs
adjective
dark; shadowy or obscure