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 hydrogenotrophic That converts hydrogen to other compounds as part of its metabolism. hydrogenotrophically By means of hydrogenotrophy hydrogenotrophy The property of being hydrogenotrophic. hydrogenous of, related to, or containing hydrogen hydrogenously In the presence of hydrogen. hydrogenoxalate The univalent group -HC₂O₄, or any salt containing it. hydrogenselenate The anion HSeO₄⁻ or any salt containing this anion; the selenium analogue of hydrogensulfate hydrogensulfate The anion HSO₄⁻ or any salt containing this anion hydrogeochemical Relating to hydrogeochemistry hydrogeochemically In terms of hydrogeochemistry. hydrogeochemist One who studies hydrogeochemistry. hydrogeochemistry The chemistry of ground and surface waters, particularly the relationship between the chemical characteristics and quality of waters and the areal and regional geology. hydrogeographer A geographer whose speciality is hydrogeography hydrogeographic Relating to hydrogeography hydrogeography The geography of rivers, seas and other bodies of water hydrogeologic Of or pertaining to hydrogeology hydrogeological Of or pertaining to hydrogeology. hydrogeologically By means of, or with reference to hydrogeology hydrogeologist A person involved in hydrogeology. hydrogeology The geology of groundwater, especially concerning the physical, biological and chemical properties of its occurrence and movement. hydrogeomorphic Relating to hydrogeomorphology hydrogeomorphologic Relating to hydrogeomorphology hydrogeomorphological Relating to hydrogeomorphology hydrogeomorphology The study of landforms created or modified by water hydrogeophysical hydrological and geophysical hydrogeophyte Any aquatic geophyte hydrogiobertite A mixture of hydromagnesite and calcite. hydroglauberite An orthorhombic snow white mineral containing calcium, hydrogen, oxygen, sodium, and sulfur. hydroglider A kind of boat driven by an air propeller. hydrognosy The scientific description of the waters of the Earth. hydrogode The negative pole; the cathode. hydrograph A graph of flow past a point in a river versus time. hydrographer A scientist whose speciality is hydrography. hydrographia Creating an illusion of reality through vivid description of water. hydrographic Of or pertaining to hydrography. hydrographical hydrographic hydrographically By means of, or in terms of, hydrography. hydrographist A hydrographer. hydrography The scientific measurement and description of the physical features and conditions of navigable waters and the shoreline. hydrogravitational Describing the interaction of gravity and the movement of fluids (such as astronomical plasmas) hydrogrossular A variety of garnet sometimes used as a gemstone. hydroguret Any hydride. hydrogymnastic Relating to hydrogymnastics hydrogymnastics therapeutic gymnastics performed in water hydrohaemia hydraemia hydrohalic Composed of hydrogen and a halogen. hydrohalide Any compound or complex formed by reaction with a hydrogen halide hydrohalite A monoclinic-prismatic mineral containing chlorine, hydrogen, oxygen, and sodium. hydrohalogenation The electrophilic addition of hydrohalic acids to alkenes to yield the corresponding haloalkanes. hydrohalophyte A halophyte that lives in salty water hydrohausmannite A mixture of hausmannite and feitknechtite. hydrohematite Synonym of lepidocrocite. hydrohemicryptophyte Any aquatic hemicryptophyte hydrohetaerolite A tetragonal-ditetragonal dipyramidal mineral containing hydrogen, manganese, oxygen, and zinc. hydroheterofullerene Any heterofullerene in which one or more carbon atoms are replaced by a heteroatom attached to a hydrogen atom hydrohomie A person who drinks water. hydrohonessite A hexagonal mineral containing hydrogen, iron, nickel, oxygen, and sulfur. hydrohydrodesulphurization A specialized form of hydrodesulphurization in which sulfur compounds are removed from hydrogen-rich gas streams using hydrogen and a catalyst, typically by converting sulfur species into hydrogen sulfide. hydroid Any of many colonial coelenterates that exist mainly as a polyp; a hydrozoan. hydroidean hydrozoan, hydroid hydroidolinan Any cnidarian of the subclass Hydroidolina hydroimidazolone A partially hydrogenated form of imidazolone; any derivative of this compound hydroinformatic Relating to hydroinformatics hydroinformatics The branch of informatics dealing with water management hydroiodic Composed of hydrogen and iodine hydroiodide A compound of hydroiodic acid with an organic base hydroiodination Reaction with hydrogen iodide (HI) or hydroiodic acid, HI(aq). hydroionic Relating to ions in water (especially to their transport) hydroisomerization The isomerization of alkane hydrocarbons via an intermediate alkene; used especially in oil refining hydroisomerize To isomerize alkane hydrocarbons via an intermediate alkene; used especially in oil refining hydroisomerized Produced by hydroisomerization hydroisostatic Relating to hydroisostasy. hydrojet Synonym of pump-jet. hydrokinesis The psychic ability to manipulate or control water hydrokinetic Of or pertaining to hydrokinetics hydrokinetical Synonym of hydrokinetic. hydrokinetically In terms of, or by means of, hydrokinetics. hydrokinetics The branch of physics concerned with the movement of fluids hydrokryptoacetylene The acetylene derivative of krypton, HKrC≡CH hydrolaccolith A frost mound that has a core of ice and resembles a laccolith in cross-section hydrolaparoscopy laparoscopy in which a saline solution allows distension of an orifice hydrolase An enzyme that catalyzes the hydrolysis of a substrate. hydrolat An aromatic hydrosol, especially one made by steam distillation of a plant extract hydrolatrous water-worshipping hydrolatry The worship of water; belief in the spiritual powers of certain waters. hydrolethalus A rare genetic disorder resulting in birth defects and often stillbirth, associated with HYLS1 protein mutations. hydroleucite The vacuoles associated with cell sap. hydrolipid An emulsion of fat and water, a film of which normally covers the skin hydrolipidic Of or pertaining to hydrolipids. hydrolipophobic Both hydrophobic and lipophobic hydrolipophobicity The condition of being hydrolipophobic hydroliquefaction Conversion of biomass into liquid fuels. hydrolith calcium hydride when used as a source of hydrogen hydrolley Any streetcar or tram vehicle using on-board hydrogen as a source of energy to power the motors. hydrolocked having the hydrolock condition hydrolocking Synonym of hydrostatic lock. hydrologic Of or pertaining to hydrology. hydrological Of or pertaining to hydrology. hydrologically With regard to hydrology. hydrologist Someone who is skilled in or practises hydrology. hydrologistor A hydraulic element that functions as a resistor hydrology The science of the properties, distribution, and effects of water on a planet's surface, in the soil and underlying rocks, and in the atmosphere. hydrolox A type of binary rocket fuel composed of liquid oxygen (lox) oxidizer and liquid hydrogen combustible. hydrolube A hydraulic fluid composed of a glycol and water hydrolysate Any product of a hydrolysis reaction. hydrolyser That which hydrolyses. hydrolysis A chemical process of decomposition involving the splitting of a bond and the addition of the hydrogen cation and the hydroxide anion of water. hydrolyte A substance subjected to hydrolysis. hydrolytic Of, pertaining to, or accompanied by hydrolysis. hydrolytically By means of hydrolysis hydrolyzability The condition of being hydrolyzable hydrolyzable Able to be hydrolyzed hydrolyzation The act of hydrolyzing hydrolyze To subject to hydrolysis. hydromagmatic Relating to, or formed by the interaction of water and hot volcanic magma hydromagnesiation Reaction with an organomagnesium compound hydromagnesite A hydrated magnesium carbonate mineral with the chemical formula Mg₅(CO₃)₄(OH)₂.4H₂O, used as a fire retardant. hydromagnesium The univalent radical HMg- hydromagnetic Of or pertaining to hydromagnetics. hydromagnetically Using hydromagnetics. hydromagnetics magnetohydrodynamics hydromancer One who practices hydromancy. hydromancy Divination by water or other liquid. hydromania A morbid craving for water. hydromaniac A fervent teetotaler. hydromanipulator A hydraulic arm used for lifting heavy loads, typically found on trucks and other large heavy-duty vehicles. hydromantic Of or pertaining to hydromancy. hydromanty hydromancy hydromassage A therapeutic massage in which bubbles of air and jets of water are pumped through a bath in which the recipient lies. hydrombobomkulite A monoclinic sky blue mineral containing aluminum, copper, hydrogen, nickel, nitrogen, oxygen, and sulfur. hydrome A vascular bundle, in plants, that transports water hydromechanical Of or pertaining to hydromechanics. hydromechanically In a hydromechanical way; by means of hydromechanics. hydromechanics fluid mechanics, especially when dealing with water hydromedusa The South American snake-necked turtle (Hydromedusa tectifera). hydromedusan Relating to the hydromedusas. hydromegatherm Any plant whose development requires a lot of heat and moisture. hydromel Mead, especially one of low alcohol content. hydromellone An acid prepared by dissolving mellonuret of potassium in boiling water, and adding hydrochloric acid, sulphuric acid, or nitric acid. hydromesic Moderately wet, but less than hydric. hydrometallated modified by hydrometallation hydrometallation The addition reaction of a metal hydride to a double bond (or triple bond) to form an organometallic compound. hydrometallurgical Of or pertaining to hydrometallurgy hydrometallurgically Using hydrometallurgy. hydrometallurgist One who studies hydrometallurgy. hydrometallurgy The field of extractive metallurgy involving the use of aqueous chemistry for the recovery of metals from ores, concentrates, and recycled or residual materials. hydrometamorphism A type of metamorphism caused by water. hydrometeor Rain, snow and other precipitation products of the condensation of atmospheric water vapour hydrometeorological Of or pertaining to hydrometeorology. hydrometeorologist One who studies hydrometeorology.