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ion product of one molecule of phosphoric acid with one of phosphorous acid, by partial dehydration.

rcury column, as on a steam gauge. -- Inch of water. See under Water. -- Miner's inch, (Hydraulic Mining), a unit for the measurement of water. See Inch of water, under Water.

The quality of having similar sexual zooids or gonophores and dissimilar hydrants; -- said of certain hydroids.

ng a heavy body through a small distance. It consists of a lever, screw, rack and pinion, hydraulic press, or any simple combination of mechanical powers, working in a compact pedestal or support and operated by a lever, crank, capstan bar, etc. The name is often given to a jackscrew, which is a kind of jack.…

ing matter, usually by precipitation, with a metallic oxide or earth, esp. with aluminium hydrate; as, madder lake; Florentine lake; yellow lake, etc.

the lead, to cast the sounding lead for ascertaining the depth of water. -- White lead, hydrated carbonate of lead, obtained as a white, amorphous powder, and much used as an ingredient of white paint.

An unfermentable carbohydrate obtained by gently heating levulose.

To treat with lime, or oxide or hydrate of calcium; to manure with lime; as, to lime hides for removing the hair; to lime sails in order to whiten them. Land may be improved by draining, marling, and liming. Sir J. Child.

A hydrated arseniate of copper, occurring in obtuse pyramidal crystals of a sky-blue or verdigris-green color.

earthy white substance, consisting of magnesium oxide, and obtained by heating magnesium hydrate or carbonate, or by burning magnesium. It has a slightly alkaline reaction, and is used in medicine as a mild antacid laxative. See Magnesium. Magnesia alba Etym: [L.] (Med. Chem.), a bulky white amorphous substance, consi…

A white amorphous or crystalline substance, obtained by dehydration of mannite, and distinct from, but convertible into, mannitan.

A white amorphous or crystalline substance obtained by the partial dehydration of mannite.

A colorless liquid hydrocarbon resembling oil of turpentine, obtained by dehydrating menthol. It has an agreeable odor and a cooling taste.

ksilver), and is used in barometers, thermometers, ect. Specific gravity 13.6. Symbol Hg (Hydrargyrum). Atomic weight 199.8. Mercury has a molecule which consists of only one atom. It was named by the alchemists after the god Mercury, and designated by his symbol, mercury.

tyl oxide (Chem.), a volatile liquid having the odor of peppermint, obtained by certain dehydrating agents from acetone; -- formerly called also dumasin.

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

hed and replaced by the premolars. -- Milk of lime (Chem.), a watery emulsion of calcium hydrate, produced by macerating quicklime in water. -- Milk parsley (Bot.), an umbelliferous plant (Peucedanum palustre) of Europe and Asia, having a milky juice. -- Milk pea (Bot.), a genus (Galactia) of leguminous and, usually…

he olecranon; -- so called because of frequent occurrence in miners. -- Miner's inch, in hydraulic mining, the amount of water flowing under a given pressure in a given time through a hole one inch in diameter. It is a unit for measuring the quantity of water supplied.

letely round in a horizontal plane and having a limited play in a vertical plane, used in hydraulic mining, fire-extinguishing apparatus, etc.

ing the characteristics of both muscle and epithelium; as, the myoepithelial cells of the hydra.