noun🔗ShareКнидарииAny of various invertebrate animals, such as jellyfish, hydras, sea anemones, corals and formerly sponges and ctenophores that belong to the phylum Cnidaria."While swimming in the ocean, we saw a beautiful jellyfish, a type of cnidarian. "Плавая в океане, мы увидели красивую медузу, тип книдарий.animalbiologyoceannatureChat with AIVocabulary GamePractice Reading