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Glite Dictionary
trihedral

trihedral

8.7
A shape with three flat faces that meet at one point
  • adjective
  • /traɪˈhɪdrəl/
  • Specialized
: triédrico
  • A trihedral angle is formed where three planes meet at a single point.

Examples

  • In her art class, she created a sculpture featuring a trihedral design with three distinct surfaces.

  • If you have something that's not in the set we're going to produce now, it can't be built with trihedral vertexes.

  • The geometry teacher explained how to visualize a trihedral shape using simple models.

Synonyms

triangular
vstrihedral
22 2.7

A shape with three straight sides and three angles

describes three faces or surfaces in three dimensional forms
three-cornered
vstrihedral
1 3.6

Having three corners

refers to three surfaces meeting rather than flat corners
tricornered
vstrihedral
  • Archaic
1 6.7

Having three corners or points like an old hat

is about three flat faces meeting in space rather than just points
triangled
vstrihedral
1 4.2

With three sides or decorated with three-sided patterns

means three faces or surfaces not merely decoration or pattern

Surface Forms

trihedral positive

Morphology

trihedral = tri + hedr + al

The meaning is compositionally linked to 'tri-' plus a geometric element meaning 'face' or 'plane', but the specialized technical form makes it less immediately obvious to a learner.

Etymology

Trihedral comes from tri- meaning 'three' and -hedral meaning 'face', the same 'tri-' you see in triangle and the '-hedral' you see in polyhedron. So a trihedral shape has three faces or three flat sides.