Actiniaria is a scientific term used to refer to sea anemones that belong to the phylum Cnidaria. Cnidarians are a diverse phylum of aquatic animals that include jellyfish, corals, and sea anemones. There are several synonyms for the word Actiniaria, such as sea flowers, flower animals, and flower polyps. These synonyms emphasize the resemblance of sea anemones to flowers due to their cylindrical bodies and frilly tentacles. Additionally, they are sometimes referred to as polyps or sea stars, which are related to the body shape of these animals. Regardless of the name used, Actiniaria remains an essential member of the marine ecosystem and plays a significant role in oceanic biodiversity.