|
Hydrocodone
|
D006853 |
[Narcotic analgesic related to CODEINE, but more potent and more addicting by weight. It is used also as cough suppressant.
] |
|
Hydrocolpos
|
D052202 |
[A fluid-filled VAGINA that is obstructed.
] |
|
Hydrocortisone
|
D006854 |
[The main glucocorticoid secreted by the ADRENAL CORTEX. Its synthetic counterpart is used, either as an injection or topically, in the treatment of inflammation, allergy, collagen diseases, asthma, adrenocortical deficiency, shock, and some neoplastic conditions.
] |
|
Hydrodynamics
|
D057446 |
[The motion of fluids, especially noncompressible liquids, under the influence of internal and external forces.
] |
|
Hydroflumethiazide
|
D006857 |
[A thiazide diuretic with actions and uses similar to those of HYDROCHLOROTHIAZIDE. (From Martindale, The Extra Pharmacopoeia, 30th ed, p822)
] |
|
Hydrofluoric Acid
|
D006858 |
[Hydrofluoric acid. A solution of hydrogen fluoride in water. It is a colorless fuming liquid which can cause painful burns.
] |
|
Hydrogel, Polyethylene Glycol Dimethacrylate
|
D020136 |
[A network of cross-linked hydrophilic macromolecules used in biomedical applications fabricated by photopolymerization of polyethylene glycol dimethacrylate. Its general formulae is C3H5C(O)(OCH2CH2)nOC(O)C3H5 where n denotes a number of average polyglycol (OCH2CH2) repeats.
] |
|
Hydrogels
|
D020100 |
[Water swollen, rigid, 3-dimensional network of cross-linked, hydrophilic macromolecules, 20-95% water. They are used in paints, printing inks, foodstuffs, pharmaceuticals, and cosmetics. (Grant & Hackh's Chemical Dictionary, 5th ed)
] |
|
Hydrogen
|
D006859 |
[The first chemical element in the periodic table with atomic symbol H, and atomic number 1. Protium (atomic weight 1) is by far the most common hydrogen isotope. Hydrogen also exists as the stable isotope DEUTERIUM (atomic weight 2) and the radioactive isotope TRITIUM (atomic weight 3). Hydrogen forms into a diatomic molecule at room temperature and appears as a highly flammable colorless and odorless gas.
] |
|
Hydrogen Bonding
|
D006860 |
[A low-energy attractive force between hydrogen and another element. It plays a major role in determining the properties of water, proteins, and other compounds.
] |
|
Hydrogen Cyanide
|
D006856 |
[Hydrogen cyanide (HCN); A toxic liquid or colorless gas. It is found in the smoke of various tobacco products and released by combustion of nitrogen-containing organic materials.
] |
|
Hydrogen Deuterium Exchange-Mass Spectrometry
|
D000080307 |
[A mass spectrometry method utilizing hydrogen-deuterium exchange kinetics to study conformational and dynamic changes especially of proteins, such as interactions during ligand binding and allosteric effects during catalysis.
] |
|
Hydrogen Peroxide
|
D006861 |
[A strong oxidizing agent used in aqueous solution as a ripening agent, bleach, and topical anti-infective. It is relatively unstable and solutions deteriorate over time unless stabilized by the addition of acetanilide or similar organic materials.
] |
|
Hydrogen Sulfide
|
D006862 |
[A flammable, poisonous gas with a characteristic odor of rotten eggs. It is used in the manufacture of chemicals, in metallurgy, and as an analytical reagent. (From Merck Index, 11th ed)
] |
|
Hydrogen-Ion Concentration
|
D006863 |
[The normality of a solution with respect to HYDROGEN ions; H+. It is related to acidity measurements in most cases by pH = log 1/2[1/(H+)], where (H+) is the hydrogen ion concentration in gram equivalents per liter of solution. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
] |
|
Hydrogenase
|
D006864 |
[An enzyme found in bacteria. It catalyzes the reduction of FERREDOXIN and other substances in the presence of molecular hydrogen and is involved in the electron transport of bacterial photosynthesis.
] |
|
Hydrogenation
|
D006865 |
[Addition of hydrogen to a compound, especially to an unsaturated fat or fatty acid. (From Stedman, 26th ed)
] |
|
Hydrogenophilaceae
|
D043363 |
[A family of gram-negative bacteria in the order Hydrogenophilales, class BETAPROTEOBACTERIA.
] |
|
Hydrogensulfite Reductase
|
D050885 |
[An enzyme found primarily in SULFUR-REDUCING BACTERIA where it plays an important role in the anaerobic carbon oxidation pathway.
] |
|
Hydrolases
|
D006867 |
[Any member of the class of enzymes that catalyze the cleavage of the substrate and the addition of water to the resulting molecules, e.g., ESTERASES, glycosidases (GLYCOSIDE HYDROLASES), lipases, NUCLEOTIDASES, peptidases (PEPTIDE HYDROLASES), and phosphatases (PHOSPHORIC MONOESTER HYDROLASES). EC 3.
] |
