Definition of medusa

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Medusa (n.) Any free swimming acaleph; a jellyfish.

Lern More About Medusa

Hydromedusa :: Hydromedusa (n.) Any medusa or jellyfish which is produced by budding from a hydroid. They are called also Craspedota, and naked-eyed medusae..
Acalephae :: Acalephae (n. pl.) A group of Coelenterata, including the Medusae or jellyfishes, and hydroids; -- so called from the stinging power they possess. Sometimes called sea nettles..
Polypomedusae :: Polypomedusae (n. pl.) Same as Hydrozoa.
Medusoid :: Medusoid (a.) Like a medusa; having the fundamental structure of a medusa, but without a locomotive disk; -- said of the sessile gonophores of hydroids..
Tentaculocyst :: Tentaculocyst (n.) One of the auditory organs of certain medusae; -- called also auditory tentacle.
Ciliograde :: Ciliograde (a.) Moving by means of cilia, or cilialike organs; as, the ciliograde Medusae..
Sea Jelly :: Sea jelly () A medusa, or jellyfish..
Lithocyst :: Lithocyst (n.) A sac containing small, calcareous concretions (otoliths). They are found in many Medusae, and other invertebrates, and are supposed to be auditory organs..
Semaeostomata :: Semaeostomata (n. pl.) A division of Discophora having large free mouth lobes. It includes Aurelia, and Pelagia. Called also Semeostoma. See Illustr. under Discophora, and Medusa..
Planoblast :: Planoblast (n.) Any free-swimming gonophore of a hydroid; a hydroid medusa.
Ephyra :: Ephyra (n.) A stage in the development of discophorous medusae, when they first begin to swim about after being detached from the strobila. See Strobila..
Perseus :: Perseus (n.) A Grecian legendary hero, son of Jupiter and Danae, who slew the Gorgon Medusa..
Medusian :: Medusian (n.) A medusa.
Meconidium :: Meconidium (n.) A kind of gonophore produced by hydroids of the genus Gonothyraea. It has tentacles, and otherwise resembles a free medusa, but remains attached by a pedicel..
Medusa :: Medusa (n.) Any free swimming acaleph; a jellyfish.
Gonophore :: Gonophore (n.) A sexual zooid produced as a medusoid bud upon a hydroid, sometimes becoming a free hydromedusa, sometimes remaining attached. See Hydroidea, and Illusts. of Athecata, Campanularian, and Gonosome..
Sea Nettle :: Sea nettle () A jellyfish, or medusa..
Polypite :: Polypite (n.) Sometimes, the manubrium of a hydroid medusa..
Medusiform :: Medusiform (a.) Resembling a medusa in shape or structure.
Nectocalyx :: Nectocalyx (n.) The swimming bell or umbrella of a jellyfish of medusa.
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