Trill

The Trill refers to two species from the planet Trill; one is humanoid and distinguished by a pattern of spots from the top of their head to their toes, and the other is a symbiotic slug-like organism called a symbiont. The symbionts will often "join" with a humanoid host so they can experience the universe at large.

The Trill mathematical system is noted for containing ethical modes. (novel: Star Trek: The Next Generation Intellivore)

See Also: Trill for a list of Trill.