Definition of medusa

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

Lern More About Medusa

Sea Jelly :: Sea jelly () A medusa, or jellyfish..
Blubber :: Blubber (n.) A large sea nettle or medusa.
Jellyfish :: "Jellyfish (n.) Any one of the acalephs, esp. one of the larger species, having a jellylike appearance. See Medusa..
Velum :: Velum (n.) The circular membrane that partially incloses the space beneath the umbrella of hydroid medusae.
Strobila :: Strobila (n.) A form of the larva of certain Discophora in a state of development succeeding the scyphistoma. The body of the strobila becomes elongated, and subdivides transversely into a series of lobate segments which eventually become ephyrae, or young medusae..
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..
Tentaculocyst :: Tentaculocyst (n.) One of the auditory organs of certain medusae; -- called also auditory tentacle.
Medusiform :: Medusiform (a.) Resembling a medusa in shape or structure.
Rhopalium :: Rhopalium (n.) One of the marginal sensory bodies of medusae belonging to the Discophora.
Sea Nettle :: Sea nettle () A jellyfish, or medusa..
Hydranth :: Hydranth (n.) One of the nutritive zooids of a hydroid colony. Also applied to the proboscis or manubrium of a hydroid medusa. See Illust. of Hydroidea.
Algol :: Algol (n.) A fixed star, in Medusa's head, in the constellation Perseus, remarkable for its periodic variation in brightness..
Hydromedusa :: Hydromedusa (n.) Any medusa or jellyfish which is produced by budding from a hydroid. They are called also Craspedota, and naked-eyed medusae..
Taeniola :: Taeniola (n.) One of the radial partitions which separate the internal cavities of certain medusae.
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..
Medusian :: Medusian (n.) A medusa.
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..
Planoblast :: Planoblast (n.) Any free-swimming gonophore of a hydroid; a hydroid medusa.
Ciliograde :: Ciliograde (a.) Moving by means of cilia, or cilialike organs; as, the ciliograde Medusae..
Pulmograde :: Pulmograde (a.) Swimming by the expansion and contraction, or lunglike movement, of the body, or of the disk, as do the medusae..
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