A cnidarian in its free-swimming stage. Medusas are bell-shaped, with tentacles hanging down around a central mouth. Jellyfish are medusas, while corals and sea anemones lack a medusa stage and exist only as polyps.
Find another word for jellyfish. In this page you can discover 8 synonyms, antonyms, idiomatic expressions, and related words for jellyfish, like: fish, medusa, ctenophore, hydrozoan, scyphozoan, portuguese-man-of-war, man-of-war and coelenterate.