Trigonal

//ˈtrɪɡənəl// adj

Definitions

Adjective
  1. 1
    Having three angles and three sides, triangular.
  2. 2
    Of or pertaining to a crystal system with three equal and equally inclined but not perpendicular axes.
  3. 3
    Relating to the trigone
Adjective
  1. 1
    having threefold symmetry wordnet

Etymology

From Latin trigōnālis (“triangular”), equivalent to trigon + -al.

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