trigonal
adjUK /ˈtrɪɡənəl/
Etymology From Latin trigōnālis (“triangular”), equivalent to trigon + -al.
1
Having three angles and three sides, triangular.
2
Chemistry, Crystallography, Natural sciences, Physical sciences Of or pertaining to a crystal system with three equal and equally inclined but not perpendicular axes.
- Derived terms
- ditrigonal, intertrigonal, nontrigonal, peritrigonal, subtrigonal, supratrigonal, trigonally