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for the examination, repairing, or building of vessels, as graving docks, floating docks, hydraulic docks, etc. -- Floating dock, a dock which is made to become buoyant, and, by floating, to lift a vessel out of water. -- Graving dock, a dock for holding a ship for graving or cleaning the bottom, etc. -- Hydraulic d…

ame; afterwards prepared from sea water; but now from certain minerals, as from siliceous hydrate of magnesia.

ved from ethyl alcohol by the replacement of the hydroxyl hydrogen, after the manner of a hydrate; an ethyl alcoholate; as, potassium ethylate, C2H5.O.K.

A hydration of iolite.

A stream that flows into another body of water; a tributary; specifically (Hydraulic Engin.), a water course which supplies a canal or reservoir by gravitation or natural flow.

veying fire, especially the receptacle for the priming of a gun. -- Fire plug, a plug or hydrant for drawing water from the main pipes in a street, building, etc., for extinguishing fires. -- Fire policy, the writing or instrument expressing the contract of insurance against loss by fire. -- Fire pot. (a) (Mil.) A s…

, or conduit for the water that drives a mill wheel; or an artifical channel of water for hydraulic or placer mining; also, a chute for conveying logs or lumber down a declivity.

st smoke of arctic winters. Kane. -- Frost valve, a valve to drain the portion of a pipe, hydrant, pump, etc., where water would be liable to freeze. -- Jack Frost, a popular personification of frost.

An amorphous, gummy carbohydrate resembling gelose, found in the seeds of leguminous plants, and yielding on decomposition several sugars, including galactose.

urrent, but will be deposited as snow in the cooling apparatus. The resultant uniformly dehydrated blast effects great economy in fuel consumption, and promotes regularity of furnace operation, and certainty of furnace control.

hem.), a nitrogeneous colloid, not existing as such in the animal body, but formed by the hydrating action of boiling water on the collagen of various kinds of connective tissue (as tendons, bones, ligaments, etc.). Its distinguishing character is that of dissolving in hot water, and forming a jelly on cooling. It is a…

An amorphous, gummy carbohydrate, found in Gelidium, agar-agar, and other seaweeds.

A loose hydrated form of silica, a variety of opal, deposited in concretionary cauliflowerlike masses, around some hot springs and geysers.

A hydrate of alumina.

A native hydrated silicate of alumina, lime, and potash, first noticed near Rome.

ey are of the nature of complex and compound ethers, and ethereal salts of the sugar carbohydrates.

less liquid, obtained from certain derivatives of glycerin, and regarded as a partially dehydrated glycerin; -- called also glycidic alcohol.

A white amorphous powder, C4H4O, obtained by heating and dehydrating glycolic acid. [Written also glycollide.]

One of a class of carbohydrates having from three to nine atoms of carbon in the molecules and having the constitution either of an aldehyde alcohol or of a ketone alcohol. Most glycoses have hydrogen and oxygen present in the proportion to form water, while the number of carbon atoms is usually equal to the number of…

g in wet places in early spring. -- Golden seal (Bot.), a perennial ranunculaceous herb (Hydrastis Canadensis), with a thick knotted rootstock and large rounded leaves. -- Golden sulphide, or sulphuret, of antimony (Chem.), the pentasulphide of antimony, a golden or orange yellow powder. -- Golden warbler (Zoöl.), a…