See Also: trihedral(medicine)
trihedral(dictionary)
trihedral (iou)
trihedral adjective & noun. Also triedral. L18.
[from Greek tri- TRI- + hedra base + -AL1.]
A. adjective. Of a solid figure or body: having three sides or faces (in addition to the base or ends); bounded laterally by three surfaces; triangular in cross-section. L18.
trihedral angle, trihedral quoin a solid angle formed by three surfaces meeting at a point.
b. noun. Geometry. A trihedral figure. E20.
trihedron noun, pl. -dra, -drons, = TRIHEDRAL noun E19.
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