Definition of helium

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Helium (n.) A gaseous element found in the atmospheres of the sun and earth and in some rare minerals.

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Litchi :: Litchi (n.) The fruit of a tree native to China (Nephelium Litchi). It is nutlike, having a rough but tender shell, containing an aromatic pulp, and a single large seed. In the dried fruit which is exported the pulp somewhat resembles a raisin in color and form..
Gorgerin :: Gorgerin (n.) In some columns, that part of the capital between the termination of the shaft and the annulet of the echinus, or the space between two neck moldings; -- called also neck of the capital, and hypotrachelium. See Illust. of Column..
Longan :: Longan (n.) A pulpy fruit related to the litchi, and produced by an evergreen East Indian tree (Nephelium Longan)..
Throatwort :: Throatwort (n.) A plant (Campanula Trachelium) formerly considered a remedy for sore throats because of its throat-shaped corolla.
Tubule :: Tubule (n.) A minute tube lined with glandular epithelium; as, the uriniferous tubules of the kidney..
Parhelium :: Parhelium (n.) See Parhelion.
Epitheliums :: Epitheliums (pl. ) of Epitheliu.
Rambutan :: Rambutan (n.) A Malayan fruit produced by the tree Nephelium lappaceum, and closely related to the litchi nut. It is bright red, oval in shape, covered with coarse hairs (whence the name), and contains a pleasant acid pulp. Called also ramboostan..
Perihelium :: Perihelium (n.) That point of the orbit of a planet or comet which is nearest to the sun; -- opposed to aphelion.
Tapetum :: Tapetum (n.) An area in the pigmented layer of the choroid coat of the eye in many animals, which has an iridescent or metallic luster and helps to make the eye visible in the dark. Sometimes applied to the whole layer of pigmented epithelium of the choroid..
Myoepithelial :: Myoepithelial (a.) Having the characteristics of both muscle and epithelium; as, the myoepithelial cells of the hydra..
Subequal :: Subepithelial (a.) Situated under the epithelium.
Mariet :: Mariet (n.) A kind of bellflower, Companula Trachelium, once called Viola Mariana; but it is not a violet..
Squamaceous :: Squama (n.) A scale cast off from the skin; a thin dry shred consisting of epithelium.
Corium :: Corium (n.) The deep layer of mucous membranes beneath the epithelium.
Stigma :: Stigma (v. t.) A small spot, mark, scar, or a minute hole; -- applied especially to a spot on the outer surface of a Graafian follicle, and to spots of intercellular substance in scaly epithelium, or to minute holes in such spots..
Purpurogenous :: Purpurogenous (a.) Having the power to produce a purple color; as, the purpurogenous membrane, or choroidal epithelium, of the eye. See Visual purple, under Visual..
Epithelial :: Epithelial (a.) Of or pertaining to epithelium; as, epithelial cells; epithelial cancer..
Lipochrin :: Lipochrin (n.) A yellow coloring matter, soluble in ether, contained in the small round fat drops in the retinal epithelium cells. It is best obtained from the eyes of frogs..
Epithelium :: Epithelium (n.) The superficial layer of cells lining the alimentary canal and all its appendages, all glands and their ducts, blood vessels and lymphatics, serous cavities, etc. It often includes the epidermis (i. e., keratin-producing epithelial cells), and it is sometimes restricted to the alimentary canal, the glands and their appendages, -- the term endothelium being applied to the lining membrane of the blood vessels, lymphatics, and serous cavities..
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