Enrich your vocabulary with the English Definition dictionary jellyfish - WordReference English dictionary, questions, discussion and forums. A cnidarian, a member of the phylum Cnidaria. Information and translations of Medusa in the most comprehensive dictionary definitions resource on the web. : Los genes de la medusa producen una proteína verde fluorescente. Although these magnificent marine creatures don’t purposely attack humans, most stings occur when people accidentally touch a jellyfish. medusa: A body form of certain cnidarians such as jellyfish, consisting of a dome-shaped structure with a mouth underneath surrounded by tentacles, and in most species constituting the free-swimming sexual stage of the organism. translation and definition "jellyfish", English-Portuguese ... en.wiktionary.org. What does jellyfish mean? Definition of Medusa in the Definitions.net dictionary. A polyp is the form that attaches to a surface, while a medusa is the form that is free-floating; a species of cnidarian may take each form in a different phase of its life. Close-up of purple jellyfish: Bruce H. Obison. In this class, the life cycle of Jellyfish shows Medusa stage which is the dominant and conspicuous zooid. Corals, sea anemones and jellyfish belong to a group of animals called cnidarians. ‘A medusa, or jellyfish, is part of the life cycle of just one major group of animals, the cnidarians.’ More example sentences ‘Cnidarians have two basic body forms, medusa and polyp.’ Picture credits Bioflourescent jellyfish: Getty Images UK. Jellyfish (; Meduzot) is a 2007 Israeli film based on a story by Shira Geffen and directed by her husband, Etgar Keret.The film tells the story of three women in Tel Aviv whose intersecting lives paint a pessimistic portrait of Israeli secular life. The tentacles of jellyfish galaxies are produced in galaxy clusters by a process called ram pressure stripping. Meaning of jellyfish. Definition of jellyfish in the Definitions.net dictionary. What does jellyfish mean? ‘Like jellyfish, Medusa can sting an enemy with its tentacles.’ More example sentences ‘Man-eating saltwater crocodiles lurk in nearby estuaries along with the deadly box jellyfish, the most poisonous creature on earth.’ : Monica got stung by a jellyfish. .] ... a jellyfish. Moon jellyfish is the common name for the species Aurelia aurita, and they're one of the most common species of jellyfish. ... but for these jellyfish it was a disaster. The polyps of jellyfish resemble those of coral and anemones, however they give rise to the medusa stage, instead of gametes. The medusa is a free-swimming, reverse version of the polyp. The typical form of free-swimming jellyfish is known as the medusa stage. Information and translations of jellyfish in the most comprehensive dictionary definitions resource on the web. medusa definition in English dictionary, medusa meaning, synonyms, see also 'medusan',mesa',medulla',mediums'. Find words for medusa in English in this Spanish-English dictionary. Jellyfish definition: A jellyfish is a sea creature that has a clear soft body and can sting you. Furthermore, box jellyfish belongs to the class Cubozoa while true jellyfish belongs to the class Scyphozoa. Etymology: [L., fr. jellyfish (countable and uncountable, plural jellyfish or jellyfishes) An almost transparent aquatic animal; any one of the acalephs, especially one of the larger species, having a jellylike appearance. In biology, polyp is a term with several meanings. The box jellyfish is … Medusa, an umbrella-shaped free-swimming organism, like a jellyfish or hydra. Box jellyfish is the common name for any of the radially symmetrical, marine invertebrates comprising the Cnidarian class Cubozoa, characterized by generally well-developed eyes and a life cycle dominated by a cube-shaped medusa stage. They have a simple body consisting of a central gut cavity surrounded by tentacles. They inhabit the northern marine waters of Australia. This seems like a strong argument for definition one; similar functions would warrant a single definition. Meaning of Medusa. Any of numerous usually free-swimming marine cnidarians of the class Scyphozoa, characteristically having a gelatinous, tentacled, often bell-shaped medusa stage as the dominant phase of its life cycle. Furthermore, the dominant phase of the life of Obelia is very small while the dominant phase of the life of jellyfish is large.These are the main structural difference between Obelia and jellyfish.. Obelia and jellyfish are two classes of the phylum Cnidaria. The polyp is anchored with its mouth and tentacles facing up. The jellyfish genes produce a fluorescent green protein. (Supermassive Black Holes Feed on Cosmic Jellyfish, ESO) The polyp, a cnidarian as are jellyfish, provides stinging protection and secretes a calcium shell, and the algae performs photosynthesis, produces oxygen and gives the coral its color. medusa { noun feminine } aquatic animal. Gr. jellyfish - translate into Norwegian with the English-Norwegian Dictionary - Cambridge Dictionary : Una picadura de medusa puede llegar a ser bastante molesto. : A Monica la picó una aguamala. | Meaning, pronunciation, translations and examples Context examples . Translate medusa into English. Medusa Regional drug slang for an inhalant. Freebase (0.00 / 0 votes) Rate this definition: Jellyfish. medusa, in zoology, scientific name for the jellyfish jellyfish, common name for the free-swimming stage (see polyp and medusa), of certain invertebrate animals of the phylum Cnid Medusa Jellyfish are the major non-polyp form of individuals of the phylum Cnidaria.They are typified as free-swimming marine animals consisting of a gelatinous umbrella-shaped bell and trailing tentacles.The bell can pulsate for locomotion, while the stinging tentacles are used to capture prey. The upper surface is called the … The main difference between box jellyfish and true jellyfish is that box jellyfish has a box-shape medusa, whereas true jellyfish can have differently-shaped medusa. medusa (pl. The medusoid body is bell- or umbrella-shaped. The dominant phase of the life cycle of Obelia is a polyp whereas the dominant phase of the life cycle of jellyfish is a medusa. ... swimming marine cnidarians of the class Scyphozoa, characteristically having a gelatinous, tentacled, often bell-shaped medusa stage … The medusa form predominates in the classes Scyphozoa (the common, colourful, large jellyfish) and Cubozoa. Jellyfish have a soft and transparent body which is composed of 95% water and so they can perfectly camouflage inside water. The medusas then develop and release gametes. The fact is, though, that jellyfish have complex life cycles, in which they go through no less than six different developmental stages. The medusa is a flattened, more sack-like version, floating with its mouth down and tentacles hanging below. Medusa In cnidarians, a medusa is a body form that is often free living. Polyp Definition. Look it up now! Batya, a waitress at weddings, comes across a mute child who seemingly emerges from the sea. Turritopsis dohrnii, also known as the immortal jellyfish, is a species of small, biologically immortal jellyfish found worldwide in temperate to tropic waters. A marine animal of the subphylum Medusozoa consisting of a gelatinous umbrella-shaped bell and trailing tentacles. They can vary from being bell-shaped to the shape of a thin disk. Freebase (1.00 / 1 vote) Rate this definition: Menu. Also called true jellyfish. : Estómago: órgano del sistema digestivo de la medusa. Dictionary ! Jellyfish, any planktonic marine member of the class Scyphozoa (phylum Cnidaria), a group of invertebrate animals composed of about 200 described species, or of the class Cubozoa (approximately 20 species). Irukandji jellyfish (/ ˌ ɪr ə ˈ k æ n dʒ i / IRR-ə-KAN-jee) are any of several similar, extremely venomous species of box jellyfish.With an adult size of about a cubic centimetre (1 cm 3), they are both the smallest and one of the most venomous jellyfish in the world. Most people are only familiar with full-grown jellyfish—the eery, translucent, bell-like creatures that occasionally wash up on sandy beaches. : A jellyfish sting can be pretty unpleasant. Jellyfish stings can be painful to humans and, from certain species, they can even be deadly. Box jellyfish and true jellyfish are two classes of jellyfish with a prominent medusa stage in their life. All Free. : Stomach: digestive organ of a jellyfish. Traducir medusa de español a Inglés. Learn more about the characteristics and natural history of jellyfish in this article. A jellyfish (or sea jelly, since it isn't really fish) is a medusa. The medusa form of Hydrozoans are known as hydromedusae. Within folks that study cnidarians, jellyfish is often a reference to the medusa life stage, which would indulge hydromedusae, or hydrozoans at the medusoid stage. While, the polypoid form is the short larval stage. ... See Medusa. medusas, medusae) the jellyfish (medusoid) stage of the COELENTERATE life cycle, usually free-swimming and propelled by pulsations of the bell. 水母 definition at Chinese.Yabla.com, a free online dictionary with English, Mandarin Chinese, Pinyin, Strokes & Audio. A jelly-like substance called mesoglea lies between the outer and inner layers of the body. aquatic being. Medusa, in zoology, one of two principal body types occurring in members of the invertebrate animal phylum Cnidaria.It is the typical form of the jellyfish. What does Medusa mean? Medusae usually reproduce sexually, giving rise to a POLYP stage from which the medusae are produced asexually Medusae form the dominant phase of the life history of members of the class … It is one of the few known cases of animals capable of reverting completely to a sexually immature, colonial stage after having reached sexual maturity as a solitary individual. A jellyfish has no ears, eyes, nose, and no brain or heart. 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