Definition of hydra

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...

Hydra (n.) Any small fresh-water hydroid of the genus Hydra, usually found attached to sticks, stones, etc., by a basal sucker..

Lern More About Hydra

Hydrazine :: Hydrazine (n.) Any one of a series of nitrogenous bases, resembling the amines and produced by the reduction of certain nitroso and diazo compounds; as, methyl hydrazine, phenyl hydrazine, etc. They are derivatives of hydrazine proper, H2N.NH2, which is a doubled amido group, recently (1887) isolated as a stable, colorless gas, with a peculiar, irritating odor. As a base it forms distinct salts. Called also diamide, amidogen, (or more properly diamidogen), etc..
Dashpot :: Dashpot (n.) A pneumatic or hydraulic cushion for a falling weight, as in the valve gear of a steam engine, to prevent shock..
Tubularia :: Tubularia (n.) A genus of hydroids having large, naked, flowerlike hydranths at the summits of long, slender, usually simple, stems. The gonophores are small, and form clusters at the bases of the outer tentacles..
Lime :: Lime (v. t.) 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..
Theca :: Theca (n.) The chitinous cup which protects the hydranths of certain hydroids.
Hydramide :: Hydramide (n.) One of a group of crystalline bodies produced by the action of ammonia on certain aldehydes.
Gismondite :: Gismondite (n.) A native hydrated silicate of alumina, lime, and potash, first noticed near Rome..
Pump :: Pump (n.) An hydraulic machine, variously constructed, for raising or transferring fluids, consisting essentially of a moving piece or piston working in a hollow cylinder or other cavity, with valves properly placed for admitting or retaining the fluid as it is drawn or driven through them by the action of the piston..
Terpinol :: Terpinol (n.) Any oil substance having a hyacinthine odor, obtained by the action of acids on terpin, and regarded as a related hydrate..
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.
Hydramine :: Hydramine (n.) One of a series of artificial, organic bases, usually produced as thick viscous liquids by the action of ammonia on ethylene oxide. They have the properties both of alcohol and amines..
Geyserite :: Geyserite (n.) A loose hydrated form of silica, a variety of opal, deposited in concretionary cauliflowerlike masses, around some hot springs and geysers..
Zoochlorella :: Zoochlorella (n.) One of the small green granulelike bodies found in the interior of certain stentors, hydras, and other invertebrates..
Lake :: Lake (n.) A pigment formed by combining some coloring matter, usually by precipitation, with a metallic oxide or earth, esp. with aluminium hydrate; as, madder lake; Florentine lake; yellow lake, etc..
Carbohydrate :: Carbohydrate (n.) One of a group of compounds including the sugars, starches, and gums, which contain six (or some multiple of six) carbon atoms, united with a variable number of hydrogen and oxygen atoms, but with the two latter always in proportion as to form water; as dextrose, C6H12O6..
Hydra :: Hydra (n.) Any small fresh-water hydroid of the genus Hydra, usually found attached to sticks, stones, etc., by a basal sucker..
#NAME? :: -ose () A suffix indicating that the substance to the name of which it is affixed is a member of the carbohydrate group; as in cellulose, sucrose, dextrose, etc..
Mannitan :: Mannitan (n.) A white amorphous or crystalline substance obtained by the partial dehydration of mannite.
High-pressure :: High-pressure (a.) Having or involving a pressure greatly exceeding that of the atmosphere; -- said of steam, air, water, etc., and of steam, air, or hydraulic engines, water wheels, etc..
Hydroxide :: Hydroxide (n.) A hydrate; a substance containing hydrogen and oxygen, made by combining water with an oxide, and yielding water by elimination. The hydroxides are regarded as compounds of hydroxyl, united usually with basic element or radical; as, calcium hydroxide ethyl hydroxide..
Random Fonts
Most Popular

close
Privacy Policy   GDPR Policy   Terms & Conditions   Contact Us