cnidaria Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. a group of aquatic animals including jellyfish and coral. Example Sentence Cnidaria is a diverse group of aquatic animals that includes jellyfish and sea anemones. Synonyms jellyfish; coral; sea anemones Antonyms mammals; birds Hear It! Say It! Write It! cnidaria Switch to cursive Start Share with your friends:
