trihedral
[ trahy-hee-druhl ]
adjectiveGeometry.
having, or formed by, three planes meeting in a point: a trihedral angle.
noun
a trihedron.
Origin of trihedral
1Other words from trihedral
- sub·tri·he·dral, adjective
Words Nearby trihedral
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use trihedral in a sentence
A triangle and a trihedral angle are therefore reciprocal figures.
The angle between two planes is termed dihedral, between three trihedral, between any number more than three polyhedral.
British Dictionary definitions for trihedral
trihedral
/ (traɪˈhiːdrəl) /
adjective
having or formed by three plane faces meeting at a point
noun
a figure formed by the intersection of three lines in different planes
Origin of trihedral
1C18: from tri- + Greek hedra base, seat + -al 1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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