Skip to content A B C D E F G H I J K L M N O P Q R S T U V W X Y Z hydrometeorology The branch of meteorology that studies the occurrence, movement and changes of state of water in the atmosphere. hydrometer An instrument that floats in a liquid and measures its specific gravity on a scale. hydromethanolic Relating to a mixture of water and methanol hydromethylation A class of reactions in which a hydrogen atom and a methyl group are added to the double bond of an alkene to form a branched alkane hydrometra An accumulation of thin mucus or other watery fluid in the cavity of the uterus. hydrometric concerning or applying hydrometry hydrometrical concerning or applying hydrometry hydrometrically By means of hydrometry. hydrometrid Any member of the family Hydrometridae (water measurers or marsh treaders). hydrometrocolpos Distention of the vagina and uterus by watery fluid other than blood or pus. hydrometrograph A flowmeter for measuring and sometimes recording the quantity of a liquid discharged from a pipe over time. hydrometry The branch of hydrostatics dealing with the measurement of specific gravity using hydrometers hydromica Synonym of illite. hydromicrobiology Study of microorganisms in aquatic environments. hydromineral Relating to the balance of water and minerals (electrolytes) in the body hydromining Synonym of hydraulic mining. hydromodification The alteration of the hydrologic characteristics of bodies of water hydromodified Subjected to hydromodification hydromodify To subject to hydromodification hydromodulus A measure of the water consumption of unit area of arable land hydromorphic Synonym of hydric (“requiring moisture”). hydromorphine dihydromorphine hydromorphinol 14-hydroxydihydromorphine, an opiate analogue derived from morphine. hydromorphism The condition of being hydromorphic hydromorphological Relating to hydromorphology hydromorphologically In a hydromorphological manner hydromorphology The shaping of the landscape by water, especially by rain and by rivers hydromorphone A synthetic narcotic analgesic, (4,5 alpha-epoxy-3-hydroxy-17-methyl morphinan-6-one), similar to morphine and heroin. It is used for moderate to severe pain under the trade name Dilaudid. hydromorphy The condition of being saturated with water hydromotor A form of motor for propelling vessels by means of jets of water ejected from the sides or stern. hydromulching A form of mulching in which the mulch is combined with water and a tackifier and then sprayed. hydromuscovite illite. hydromycin Any of a series of anthelmintic aminoglycosides produced by Streptomyces hygroscopicus hydromyelia A disorder with excessive cerebrospinal fluid accumulation within the spinal cord. hydromyelic Exhibiting or relating to hydromyelia. hydron any hydrogen cation, e.g. a proton (¹H⁺) hydronaphthoquinone Synonym of naphthoquinol. hydronastic Of or relating to hydronasty. hydronasty A nastic response to a change in water levels. hydronated hydrogenated hydronation The formation of a complex with hydrogen hydronaut Synonym of aquanaut. hydronautical pertaining to hydronautics hydronautics The science of the design and construction of ships, their engines, and their instrumentation hydronegative Having a negative hydrotropic response; repelled by water. hydronephrosis distension of the kidneys due to obstruction in the flow of urine hydronephrotic Exhibiting hydronephrosis. hydronette A syringe. hydronian Containing hydronium cations. hydronic Being or relating to a heating system that involves circulating hot water or steam. hydronically In terms of, or by means of, hydronics. hydronics The use of water or another liquid as the heat-transfer medium in heating and cooling systems. hydronitrogen Any binary compound of nitrogen and hydrogen hydronitroxide A radical derived from organic derivative of hydroxylamine by the removal or a hydrogen atom from the oxygen. hydronium The hydrated hydrogen ion, H₃O⁺. hydronym The name of a river, lake, sea or any other body of water. hydronymic Of or pertaining to the naming of rivers and water bodies. hydronymy The naming of bodies of water such as rivers and lakes. hydroosmotic Relating to osmosis of water hydropalladation The addition of the elements of palladium hydride across a double bond or triple bond. hydroparastatae a denomination, sect, church, or other group which professes to be Christian but uses water to administer the Eucharist instead of wine. hydropath A hydropathist. hydropathic Relating to or offering hydropathy. hydropathically By means of hydropathy. hydropathicity The relative hydrophobicity or hydrophilicity of a compound, especially of an amino acid residue in a protein hydropathist An expert in hydropathy hydropathize To practice hydropathy hydropathy The therapeutic use of water, either internally or externally. hydropattern The pattern of wetting (by rivers or rainfall) of a piece of land hydropatterning The process of axial roots bending and growing towards water. hydropeaking The practice of releasing pulses of water to increase hydroelectric power production at hydro dams to meet peak daily electricity demand. hydropectin A hydrated form of pectin hydropedal (of a mosasaur) Having limbs in the form of paddles hydropedality The condition of being hydropedal. hydropedological Relating to hydropedology. hydropedology The study of the connections between the hydrosphere and the pedosphere. hydropelvic Relating to, or exhibiting hydropelvis hydropelvis The presence of water (normally urine) in the renal pelvis hydropenia A bodily deficiency of water hydropenic Relating to, or exhibiting, hydropenia. hydropericardium The accumulation of serous fluid in the pericardium hydroperiod The period of time during which a wetland is covered by water. hydroperitoneum The accumulation of fluid in the peritoneum hydroperoxidase Any oxidoreductase that employs hydrogen peroxide hydroperoxidation reaction with a hydroperoxide hydroperoxide any mono-substituted derivative of hydrogen peroxide - ROOH hydroperoxidic Relating to hydroperoxides. hydroperoxy The univalent radical H-O-O- derived from hydrogen peroxide hydroperoxydase An explosive hydroxy derivative of benzotriazole hydroperoxyflavin Any of a family of metabolites formally generated by the addition of the elements of hydrogen peroxide to a flavin hydroperoxyl The radical, .O-OH, formed by removing a hydrogen atom from hydrogen peroxide, or by protonating the superoxide ion hydroperoxylation Any reaction that introduces a hydroperoxyl group hydrophane A semitranslucent variety of opal that becomes translucent or transparent on immersion in water. hydrophanous Made transparent by immersion in water. hydrophenanthrene A hydrogenated form of phenanthrene hydrophenoxylation Any reaction that adds a phenol across a double bond or triple bond, a hydrogen atom to one side and a phenoxide group to the other hydrophid Any sea snake of the subfamily Hydrophiinae, venomous, preying on fishes, with a flattened tail for swimming. hydrophiid Any sea snake in the family Hydrophiidae. hydrophiine Any sea snake of the subfamily Hydrophiinae hydrophile Any hydrophilic substance. hydrophilia affinity for water hydrophilic Having an affinity for water; able to absorb, or be wetted by water; water-loving. hydrophilically In a hydrophilic manner hydrophilicity The condition of being hydrophilic. hydrophilid Any of the water beetles of the family Hydrophilidae. hydrophilin Any of a group of proteins, present in some yeasts, that prevents cell death during desiccation hydrophilism The quality of being hydrophilic. hydrophilite A soft white mineral formed from anhydrous calcium chloride. hydrophilization The act or process of making something hydrophilic. hydrophilize To make hydrophilic. hydrophilous That grows or thrives in or near water hydrophily A form of pollination whereby pollen is distributed by the flow of waters, particularly in rivers and streams. hydrophlorone A benzene derivative, C₈H₁₀O₂, obtained by the reduction of phlorone. hydrophobation The act or process of making something hydrophobic / waterproof hydrophobe A hydrophobic compound or material. hydrophobia An aversion to water, as a symptom of rabies; the disease of rabies itself. hydrophobic Of, or having, hydrophobia (rabies); rabid. hydrophobically In a hydrophobic manner hydrophobicity The condition of being hydrophobic. hydrophobics The study, and the application of hydrophobicity hydrophobin Any of a class of small, cysteine-rich proteins that are expressed only by filamentous fungi, known for their capability of forming a hydrophobic coating on the surface of an object hydrophobist One who studies rabies. hydrophobization The act or process of making something hydrophobic, such as the surface of a particle hydrophobize To convert to a hydrophobic form hydrophobized Made hydrophobic hydrophobophobia The fear of hydrophobia, or rabies. hydrophobous hydrophobic. hydrophone a transducer that converts underwater sound waves into electrical signals, rather like a microphone hydrophonic By means of a hydrophone. hydrophore An instrument used to obtain specimens of water from any desired depth. hydrophosphination Any addition reaction in which the elements of phosphine are added across a double bond hydrophosphinylation The addition reaction of a phosphinic acid across a double bond hydrophosphonylation The addition reaction of a phosphonic acid across a double bond hydrophthalmia hydrophthalmos hydrophthalmos A congenital form of glaucoma. hydrophyllaceous Belonging to the family Hydrophyllaceae of waterleafs. hydrophyllium One of the flat, leaf-like, protective zooids covering other zooids of certain Siphonophorae. hydrophyllum Any of the genus Hydrophyllum of waterleafs. hydrophysical Relating to the physical movement of water resources hydrophysically In a hydrophysical manner. hydrophysics The physical movement of water resources. hydrophyte A plant that lives in or requires an abundance of water, usually excluding seaweed. hydrophytic Relating to hydrophytes. hydrophytism The adaptation of plants to habitats where water is abundant. hydrophytology The branch of botany that deals with water plants (hydrophytes) hydrophyton A branched structure that supports the zooids in colonial hydrozoa. hydrophytous Relating to hydrophytes hydropic Dropsical; pertaining to or suffering from dropsy (edema). hydropical Dropsical. hydropically In a hydropical (dropsical) manner.