Definition of trihedron in English:


Line breaks: tri|he¦dron
Pronunciation: /trʌɪˈhiːdrən
, -ˈhɛdrən/

noun (plural trihedra /-drə/ or trihedrons)

A solid figure having three sides or faces (in addition to the base or ends).
More example sentences
  • From now on, we will move trihedrons to restore their positions and colors, without moving dihedras.
  • A line making equal angles with the edges of a trihedron is called an isoclinal line of the trihedron.
  • If this antenna is perfect, the axes of the two trihedrons would be respectively parallel to each other.


early 19th century: from tri- 'three' + -hedron, on the pattern of words such as polyhedron.

Definition of trihedron in:

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