trigonal
/ˈtrɪɡənəl/
adjective
- Relating to or shaped like a triangle; triangular.
- The architect designed a trigonal window that let in light from three directions.
- The crystal had a trigonal structure with threefold symmetry.
- Trigonal shapes appear frequently in Islamic geometric art.
- Relating to a crystal system in which the unit cell has three equal axes at angles that are not 90 degrees.
- The mineral calcite often forms trigonal crystals.
- Quartz belongs to the trigonal crystal system.
- Geologists identified the sample as having a trigonal lattice.
Synonyms