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Hydrology
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D062070 |
[Science dealing with the properties, distribution, and circulation of water on and below the earth's surface, and atmosphere.
] |
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Hydrolysis
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D006868 |
[The process of cleaving a chemical compound by the addition of a molecule of water.
] |
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Hydrolyzable Tannins
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D047348 |
[Polymeric derivatives of GALLIC ACID that are esters of a sugar.
] |
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Hydromorphone
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D004091 |
[An opioid analgesic made from MORPHINE and used mainly as an analgesic. It has a shorter duration of action than morphine.
, Hydromorphone hydrochloride extended release.
] |
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Hydronephrosis
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D006869 |
[Abnormal enlargement or swelling of a KIDNEY due to dilation of the KIDNEY CALICES and the KIDNEY PELVIS. It is often associated with obstruction of the URETER or chronic kidney diseases that prevents normal drainage of urine into the URINARY BLADDER.
] |
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Hydrophiidae
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D000073180 |
[A subfamily of marine elapid snakes comprising about 50 species with flattened oar-like tails used as sculls. They are found mostly in the coastal waters of south Asia and Australia. The largest reach a length of almost 9 feet but most species are only about a third as long. They are all venomous. (Goin, Goin, and Zug, Introduction to Herpetology, 3d ed, pp331-3; Moore: Poisonous Snakes of the World, 1980, p159)
] |
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Hydrophobic and Hydrophilic Interactions
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D057927 |
[The thermodynamic interaction between a substance and WATER.
] |
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Hydrophthalmos
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D006871 |
[Congenital open-angle glaucoma that results from dysgenesis of the angle structures accompanied by increased intraocular pressure and enlargement of the eye. Treatment is both medical and surgical.
] |
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Hydrophyllaceae
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D029522 |
[The waterleaf plant family of the order Solanales, subclass Asteridae, class Magnoliopsida. They have alternate leaves, regular flowers with five-lobed corollas (united petals), and a one- or two-celled ovary.
] |
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Hydropneumothorax
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D006872 |
[A collection of fluid and gas within the pleural cavity. (Dorland, 27th ed)
] |
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Hydroponics
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D018527 |
[A technique for growing plants in culture solutions rather than in soil. The roots are immersed in an aerated solution containing the correct proportions of essential mineral salts. (From Concise Dictionary of Biology, 1990)
] |
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Hydrops Fetalis
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D015160 |
[Abnormal accumulation of serous fluid in two or more fetal compartments, such as SKIN; PLEURA; PERICARDIUM; PLACENTA; PERITONEUM; AMNIOTIC FLUID. General fetal EDEMA may be of non-immunologic origin, or of immunologic origin as in the case of ERYTHROBLASTOSIS FETALIS.
] |
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Hydroquinones
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D006873 |
[Derivatives of hydroquinone (1,4-dihydrobenzene) made by reduction of BENZOQUINONES.
] |
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Hydrostatic Pressure
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D006874 |
[The pressure due to the weight of fluid.
] |
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Hydrotherapy
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D006875 |
[External application of water for therapeutic purposes.
] |
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Hydrothermal Vents
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D060086 |
[Hot springs on the ocean floor. They are commonly found near volcanically active places such as mid-oceanic ridges.
] |
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Hydrothorax
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D006876 |
[A collection of watery fluid in the pleural cavity. (Dorland, 27th ed)
] |
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Hydroxamic Acids
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D006877 |
[A class of weak acids with the general formula R-CONHOH.
] |
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Hydroxides
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D006878 |
[Inorganic compounds that contain the OH- group.
] |
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Hydroxocobalamin
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D006879 |
[Injectable form of VITAMIN B 12 that has been used therapeutically to treat VITAMIN B 12 DEFICIENCY.
] |
