A "group III intron" is a type of RNA molecule that is commonly found in various organisms like bacteria, viruses, and certain plants. This intron is self-splicing, meaning it can remove itself from the RNA molecule and re-join the ends without the need for additional enzymes. Other terms or synonyms used to refer to these introns include "ribozyme-like introns," "class III introns," or "a type of non-coding RNA." These introns play important roles in gene expression, regulating protein formation, and influencing cellular processes. Studying these introns has also provided insights into the evolution of RNA molecules and the mechanisms of genetic regulation in various organisms.