Trinomen Wikipedia open wikipedia design. In zoology, the name that designates a subspecies is called Trinomen. It has three parts: It contains the name of the species and adds a qualifying name. This short article about biology can be made longer. You can help Wikipedia by adding to it. This page is based on a Wikipedia article written by contributors (read/edit).Text is available under the CC BY-SA 4.0 license; additional terms may apply. Images, videos and audio are available under their respective licenses.