Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of hydra is as below...

Hydrarthrosis :: Hydrarthrosis (n.) An effusion of watery liquid into the cavity of a joint.

Thionol :: Thionol (n.) A red or violet dyestuff having a greenish metallic luster. It is produced artificially, by the chemical dehydration of thionine, as a brown amorphous powder..

Acrolein :: Acrolein (n.) A limpid, colorless, highly volatile liquid, obtained by the dehydration of glycerin, or the destructive distillation of neutral fats containing glycerin. Its vapors are intensely irritating..

Zoochlorella :: Zoochlorella (n.) One of the small green granulelike bodies found in the interior of certain stentors, hydras, and other invertebrates..

Glycolide :: Glycolide (n.) A white amorphous powder, C4H4O, obtained by heating and dehydrating glycolic acid..

Hydrosalt :: Hydrosalt (n.) A salt supposed to be formed by a hydracid and a base.

Air Chamber :: Air chamber () A cavity containing air to act as a spring for equalizing the flow of a liquid in a pump or other hydraulic machine.

Hydras :: Hydras (pl. ) of Hydr.

Hydraulic :: Hydraulic (a.) Of or pertaining to hydraulics, or to fluids in motion; conveying, or acting by, water; as, an hydraulic clock, crane, or dock..

Hydraulicon :: Hydraulicon (n.) An ancient musical instrument played by the action of water; a water organ.

Cryohydrate :: Cryohydrate (n.) A substance, as salt, ammonium chloride, etc., which crystallizes with water of crystallization only at low temperatures, or below the freezing point of water..

Pectose :: Pectose (n.) An amorphous carbohydrate found in the vegetable kingdom, esp. in unripe fruits. It is associated with cellulose, and is converted into substances of the pectin group..

Water Lime :: Water lime () Hydraulic lime.

Polypite :: Polypite (n.) One of the feeding zooids, or polyps, of a coral, hydroid, or siphonophore; a hydranth. See Illust. of Campanularian..

Xanthopuccine :: Xanthopuccine (n.) One of three alkaloids found in the root of the yellow puccoon (Hydrastis Canadensis). It is a yellow crystalline substance, and resembles berberine..

Cataract :: Cataract (n.) A kind of hydraulic brake for regulating the action of pumping engines and other machines; -- sometimes called dashpot.

Hydractinian :: Hydractinian (n.) Any species or marine hydroids, of the genus Hydractinia and allied genera. These hydroids form, by their rootstalks, a firm, chitinous coating on shells and stones, and esp. on spiral shells occupied by hermit crabs. See Illust. of Athecata..

Aluminate :: Aluminate (n.) A compound formed from the hydrate of aluminium by the substitution of a metal for the hydrogen.

Standpipe :: Standpipe (n.) A vertical pipe, open at the top, between a hydrant and a reservoir, to equalize the flow of water; also, a large vertical pipe, near a pumping engine, into which water is forced up, so as to give it sufficient head to rise to the required level at a distance..

Hydrosulphide :: Hydrosulphide (n.) One of a series of compounds, derived from hydrogen sulphide by the replacement of half its hydrogen by a base or basic radical; as, potassium hydrosulphide, KSH. The hydrosulphides are analogous to the hydrates and include the mercaptans..

Random Fonts

Most Popular