trigonal

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Tiny quartz crystals, for instance, increase in volume as they undergo a transition from a trigonal to hexagonal shape.

From National Geographic

Bill short, strong, conic, base trigonal, sides compressed, culmin elevated, upper mandible towards the tip deflexed and notched, under mandible shorter and straight, the base thick, the margins of both inflexed.

From Project Gutenberg

Anterior wings trigonal, the hinder dentated, generally tailed, with an obtuse concave lobe at their anal angle, which is generally in motion when the insect is at rest.

From Project Gutenberg

Bill short, very straight, base trigonal, beyond attenuated to a very fine point; upper mandible above rounded, both entire.

From Project Gutenberg

Perianth on a short branch, mostly trigonal with the odd angle beneath.

From Project Gutenberg