Search the Dictionary

6, occurring naturally in combination with aluminium in the mineral mellite, and produced artificially by the oxidation of coal, graphite, etc., and hence called also graphitic acid.

ess, inflammable, alkaline gas, CH3.NH2, having an ammoniacal, fishy odor. It is produced artificially, and also occurs naturally in herring brine and other fishy products. It is regarded as ammonia in which a third of its hydrogen is replaced by methyl, and is a type of the class of substituted ammonias. -- Methyl et…

up for defense; a bulwark; a rampart; also, a natural elevation appearing as if thrown up artificially; a regular and isolated hill, hillock, or knoll. To thrid the thickets or to leap the mounds. Dryden. Mound bird. (Zoöl.) Same as Mound maker (below). -- Mound builders (Ethnol.), the tribe, or tribes, of North Ameri…

The name is also extended to a number of analogous compounds produced either naturally or artificially.

rse of rest, physical exercises, massage, etc.; hence, any similar treatment using waters artificially charged with the essential ingredients of the natural mineral waters of Bad Nauheim. Hence, Nauheim bath, etc.

obtained from certain lichens (Roccella, Lecanora, etc.), also from extract of aloes, and artificially from certain derivatives of toluene. It changes readily into orcein.

Arsenic sesquisulphide, produced artificially as an amorphous lemonyellow powder, and occurring naturally as a yellow crystalline mineral; -- formerly called auripigment. It is used in king's yellow, in white Indian fire, and in certain technical processes, as indigo printing. Our orpiment and sublimed mercurie. Chauce…

l or carbolic acid. -- Phenyl hydrazine (Chem.), a nitrogenous base (C6H5.N2H3) produced artificially as a colorless oil which unites with acids, ketones, etc., to form well-crystallized compounds.

an excavation in the earth, lined with masonry or boards, and covered with glass, but not artificially heated, -- used in winter for the storing and protection of half-hardly plants, and sometimes in the spring as a forcing bed. -- Pit coal, coal dug from the earth; mineral coal. -- Pit frame, the framework over the…

A body of water, naturally or artificially confined, and usually of less extent than a lake. "Through pond or pool." Milton. Pond hen (Zoöl.), the American coot. See Coot (a). -- Pond lily (Bot.), the water lily. See under Water, and Illust. under Nymphæa. -- Pond snail (Zoöl.), any gastropod living in fresh-water po…

, of the paraffin series, occurring naturally dissolved in crude petroleum, and also made artificially; -- called also propyl hydride.

3H6) of the ethylene series, having a garlic odor. It occurs in coal gas, and is produced artificially in various ways. Called also propene.

An unsaturated hydrocarbon, C15H26, of the valylene series, produced artificially as an oily liquid. [Written also quindekone.]

A yellow crystalline substance produced artificially. It is isomeric with alizarin.

ng certain resins, as galbanum, asafetida, etc., with caustic potash. It is also produced artificially and used in making certain dyestuffs, as phthaleïn, fluoresceïn, and eosin.

A liquid hydrocarbon, C10H18, of the acetylene series. It is produced artificially.

immersed in hot sand. -- Sand bed, a thick layer of sand, whether deposited naturally or artificially; specifically, a thick layer of sand into which molten metal is run in casting, or from a reducing furnace. -- Sand birds (Zoöl.), a collective name for numerous species of limicoline birds, such as the sandpipers, p…

ng an excess of sentiment or sensibility; indulging the sensibilities for their own sake; artificially or affectedly tender; -- often in a reproachful sense. A sentimental mind is rather prone to overwrought feeling and exaggerated tenderness. Whately.

A nonmetalic element analogous to carbon. It always occurs combined in nature, and is artificially obtained in the free state, usually as a dark brown amorphous powder, or as a dark crystalline substance with a meetallic luster. Its oxide is silica, or common quartz, and in this form, or as silicates, it is, next to ox…

esembling that of sodium carbonate. It is found in many mineral springs and also produced artificially,. It is used in cookery, in baking powders, and as a source of carbonic acid gas (carbon dioxide) for soda water. Called also cooking soda, saleratus, and technically, acid sodium carbonate, primary sodium carbonate,…