Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of medusa is as below...

Pulmograde :: Pulmograde (a.) Swimming by the expansion and contraction, or lunglike movement, of the body, or of the disk, as do the medusae..

Algol :: Algol (n.) A fixed star, in Medusa's head, in the constellation Perseus, remarkable for its periodic variation in brightness..

Rhizostomata :: Rhizostomata (n. pl.) A suborder of Medusae which includes very large species without marginal tentacles, but having large mouth lobes closely united at the edges. See Illust. in Appendix..

Velum :: Velum (n.) The circular membrane that partially incloses the space beneath the umbrella of hydroid medusae.

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

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..

Hydromedusa :: Hydromedusa (n.) Any medusa or jellyfish which is produced by budding from a hydroid. They are called also Craspedota, and naked-eyed medusae..

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.

Sea Nettle :: Sea nettle () A jellyfish, or 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.

Polypomedusae :: Polypomedusae (n. pl.) Same as Hydrozoa.

Medusa :: Medusa (n.) The Gorgon; or one of the Gorgons whose hair was changed into serpents, after which all who looked upon her were turned into stone..

Trachymedusae :: Trachymedusae (n. pl.) A division of acalephs in which the development is direct from the eggs, without a hydroid stage. Some of the species are parasitic on other medusae..

Medusiform :: Medusiform (a.) Resembling a medusa in shape or structure.

Vesiculata :: Vesiculata (n. pl.) The campanularian medusae.

Craspedota :: Craspedota (n. pl.) The hydroid or naked-eyed medusae. See Hydroidea.

Hydromedusae :: Hydromedusae (pl. ) of Hydromedus.

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..

Polypite :: Polypite (n.) Sometimes, the manubrium of a hydroid medusa..

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