What is another word for Phylum Cnidaria?
Pronunciation: [fˈa͡ɪləm sˈiːnɪdˈe͡əɹi͡ə] (IPA) 
Phylum Cnidaria is a group of aquatic invertebrates that includes jellyfish, coral, and sea anemones. There are several synonyms that are often used to refer to this phylum, including Coelenterata and Radiata. The name Coelenterata is derived from the Greek words for "hollow intestines," which reflects the fact that organisms in this phylum have a simple, sac-like body structure. Another synonym for Phylum Cnidaria is Radiata, which refers to the radial symmetry that is characteristic of these organisms. This symmetry means that the body parts of the organism are arranged around a central axis in a circular pattern. Regardless of the name used, Phylum Cnidaria is an important group of aquatic animals that play a critical role in marine ecosystems.
