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A mineral of a greenish yellow color; it is a silicate of glucina, lime, and soda with fluorine. Called also leucophanite.

The oxide of lithium; a strong alkaline caustic similar to potash and soda, but weaker. See Lithium. Lithia emerald. See Hiddenite.

The capital city of England. London paste (Med.), a paste made of caustic soda and unslacked lime; -- used as a caustic to destroy tumors and other morbid enlargements. -- London pride. (Bot.) (a) A garden name for Saxifraga umbrosa, a hardy perennial herbaceous plant, a native of high lands in Great Britain. (b) A na…

One of a class of independent, isolated cells found in the mesoderm, while the germ layers are undergoing differentiation.

The mesoderm.

groups of crystals, also fibrous massive. It is a hydrous silicate of alumina, lime, and soda.

Epithelial mesoderm; a layer of cuboidal epithelium cells, formed from a portion of the mesoderm during the differetiation of the germ layers. It constitutes the boundary of the coelum.

An old term covering natrolite or soda mesolite, scolecite or lime mesotype, and mesolite or lime-soda mesotype.

An elementary substance, as sodium, calcium, or copper, whose oxide or hydroxide has basic rather than acid properties, as contrasted with the nonmetals, or metalloids. No sharp line can be drawn between the metals and nonmetals, and certain elements partake of both acid and basic qualities, as chromium, manganese, bis…

rly, the metallic base of a fixed alkali, or alkaline earth; -- applied by Sir H. Davy to sodium, potassium, and some other metallic substances whose metallic character was supposed to be not well defined.

series of compounds of certain metallic elements with organic radicals; as, zinc methyl, sodium ethyl, etc. [Written also metallorganic.]

n which the hydroxyl hydrogen is replaced by a metal, after the analogy of a hydrate; as, sodium methylate, CH3ONa.

A granitoid rock containing feldspar, biotite, elæolite, and sodalite.

. Microcosmic salt (Chem.), a white crystalline substance obtained by mixing solutions of sodium phosphate and ammonium phosphate, and also called hydric-sodic- ammonic-phosphate. It is a powerful flux, and is used as a substitute for borax as a blowpipe reagent in testing for the metallic oxides. Originally obtained b…

Native sodium sulphate; Glauber's salt.

Found in nature; not artificial; as native sodium chloride. Native American party. See under American, a. -- Native bear (Zoöl.), the koala. -- Native bread (Bot.), a large underground fungus, of Australia (Mylitta australis), somewhat resembling a truffle, but much larger. -- Native devil. (Zoöl.) Same as Tasmanian…

The technical name for sodium.

in masses which often have a radiated structure. It is a hydrous silicate of alumina and soda.

Native sodium carbonate. [Written also anatron.]

ish masses having a greasy luster, as the variety elæolite. It is a silicate of aluminia, soda, and potash.