Hydromedusa :: Hydromedusa (n.) Any medusa or jellyfish which is produced by budding from a hydroid. They are called also Craspedota, and naked-eyed medusae..
Medulla :: Medulla (n.) The marrow of bones; the deep or inner portion of an organ or part; as, the medulla, or medullary substance, of the kidney; specifically, the medula oblongata..
Medulla :: Medulla (n.) A soft tissue, occupying the center of the stem or branch of a plant; pith..
Medullary :: Medullary (a.) Pertaining to, consisting of, or resembling, marrow or medulla..
Medullary :: Medullary (a.) Pertaining to the medula oblongata.
Medullary :: Medullary (a.) Filled with spongy pith; pithy.
Medullated :: Medullated (a.) Furnished with a medulla or marrow, or with a medullary sheath; as, a medullated nerve fiber..
Medullin :: Medullin (n.) A variety of lignin or cellulose found in the medulla, or pith, of certain plants. Cf. Lignin, and Cellulose..
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..
Medusa :: Medusa (n.) Any free swimming acaleph; a jellyfish.
Medusiform :: Medusiform (a.) Resembling a medusa in shape or structure.
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..
Medusoid :: Medusoid (n.) A sessile gonophore. See Illust. under Gonosome.
Nonmedullated :: Nonmedullated (a.) Not medullated; (Anat.) without a medulla or marrow, or without a medullary sheath; as, a nonmedullated nerve fiber..
Scyphomeduse :: Scyphomeduse (n. pl.) Same as Acraspeda, or Discophora..
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..