trihedron Syllabification: (tri·he·dron)Pronunciation: /trīˈhēdrən/Definition of trihedron noun (plural trihedrons or trihedra /-drə/) a solid figure having three sides or faces (in addition to the base or ends). Origin: early 19th century: from tri- 'three' + -hedron, on the pattern of words such as polyhedrontrihedron in other Oxford dictionaries Definition of trihedron in the British & World English dictionary
