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Glite Dictionary
trihedral

trihedral

8.7
A shape with three flat faces that meet at one point
  • adjective
  • /traɪˈhɪdrəl/
  • Specialized
translation icon : 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
23 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
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
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.