hydrazoate
azide

hydrazobenzene
The hydrogenated form of azobenzene 1,2-diphenylhydrazine

hydrazoform
A chemical compound containing hydrazine connected to a carbonyl group

hydrazyl
The radical H₂N-NH-

hydride
A compound of hydrogen with a more electropositive element.

hydrides
plural of hydride

hydrindantin
A chemical intermediate formed during the ninhydrin test for amines.

hydriodide
A compound of hydriodic acid with a base.

hydriodides
plural of hydriodide

hydrion
proton (positive hydrogen ion)

hydrions
plural of hydrion

hydroacylation
Any addition reaction in which an acyl group and a hydrogen atom (from an aldehyde) are added across a double bond

hydroacylations
plural of hydroacylation

hydroalkenylation
Any addition reaction in which a hydrogen atom and an alkenyl group are attached across a double bond or triple bond

hydroalkenylations
plural of hydroalkenylation

hydroalkoxylation
The addition reaction of an alcohol to a double bond in which a hydrogen atom is attached to one side and an alkoxy group to the other

hydroalkoxylations
plural of hydroalkoxylation

hydroamidation
The addition reaction of (the N-H group of) an amide across a double bond

hydroamidations
plural of hydroamidation

hydroamination
The addition reaction of an amine across a double bond

hydroaminations
plural of hydroamination

hydroandradite
A hydroxyl-bearing variety of the mineral andradite.

hydroarthroses
plural of hydroarthrosis

hydroarthrosis
Alternative form of hydrarthrosis.

hydroarylation
Any addition reaction in which a hydrogen atom and an aryl group are attached across a double bond or triple bond

hydroarylations
plural of hydroarylation

hydroazafullerene
A hydroheterofullerene in which one or more carbon atoms have been replaced by >NH groups

hydroazidation
Any addition reaction in which a hydrogen atom and an azide group are attached across a double bond or triple bond

hydrobiplane
A hydroaeroplane having two supporting planes.

hydrobiplanes
plural of hydrobiplane

hydroborate
Any of several anions containing hydrogen bound to boron, especially the simplest one BH₄⁻; any salt or complex containing such an anion

hydroborates
plural of hydroborate

hydroboration
The production or organoboranes by the addition of diborane to unsaturated organic compounds.

hydroborations
plural of hydroboration

hydrobromide
A compound of hydrobromic acid with an organic base (distinguished from a bromide, in which only the bromine unites with the base).

hydrobromides
plural of hydrobromide

hydrobromination
Reaction with hydrogen bromide (HBr) or hydrobromic acid, HBr(aq).

hydrocarbalkoxylation
A chemical reaction that involves the addition of a hydrocarbon group and an alkoxy group to a molecule.

hydrocarbide
hydrocarbon

hydrocarbides
plural of hydrocarbide

hydrocarbon
A compound consisting only of carbon and hydrogen atoms.

hydrocarbons
plural of hydrocarbon

hydrocarbonylation
The addition of carbon monoxide and hydrogen to unsaturated hydrocarbons.

hydrocellulose
A hydrated form of cellulose used in the manufacture of paper etc

hydrocelluloses
plural of hydrocellulose

hydroceramide
A hydrogenated lecithin used in cosmetics

hydrochemistry
That part of hydrology that deals with the chemical characteristics of bodies of water

hydrochlorid
Archaic form of hydrochloride.

hydrochloride
A compound of hydrochloric acid with an organic base such as an amine.

hydrochlorides
plural of hydrochloride

hydrochlorids
plural of hydrochlorid

hydrochlorination
Reaction with hydrogen chloride (HCl) or hydrochloric acid, HCl(aq).

hydrochlorinations
plural of hydrochlorination

hydrochlorofluorocarbon
A chlorofluorocarbon with the addition of hydrogen, making it less stable and more liable to break down before reaching the ozone layer.

hydrochlorofluorocarbons
plural of hydrochlorofluorocarbon

hydrochloruret
hydrochloride

hydrocolpos
A condition characterised by a distended, fluid-filled vaginal cavity.

hydrocracker
A chemical engineering plant in which hydrocracking takes place.

hydrocrackers
plural of hydrocracker

hydrocyanicum
hydrocyanic acid, prussic acid, a colorless liquid obtained from amygdalin, present in bitter almonds, peach stones, plums and laurel leaves

hydrocyanide
A compound of hydrocyanic acid with a base, distinguished from cyanide, in which only the cyanogen so combines.

hydrocyanides
plural of hydrocyanide

hydrocyanine
Any of a group of dyes that can detect reactive oxygen species, reacting to form cyanine

hydrocyanines
plural of hydrocyanine

hydrodealkylation
The catalytic removal of alkyl groups from an aromatic compound in the presence of hydrogen

hydrodealkylations
plural of hydrodealkylation

hydrodechlorination
The reductive dechlorination of organochlorine compounds (by the replacement of chlorine atoms by hydrogen)

hydrodegradation
chemical degradation by water

hydrodemetallization
The removal of metal from hydrocarbons during oil refining by any of several hydrotreating methods

hydrodemolition
Usage of high-pressure water to remove concrete.

hydrodenitrification
A chemical engineering process in which hydrotreating is used to reduce the nitrogen content of hydrocarbons during oil refining

hydrodenitrogenation
A chemical engineering process in which hydrotreating is used to reduce the nitrogen content of hydrocarbons during oil refining

hydrodeoxygenation
A chemical engineering process in which hydrotreating is used to reduce the oxygen content of hydrocarbons (present as alcohols, aldehydes etc) during oil refining.

hydrodeoxygenations
plural of hydrodeoxygenation

hydrodewaxing
A chemical engineering process in which hydrotreating is used to reduce the wax content of hydrocarbons during oil refining

hydrodilatation
The injection of a solution into a joint in order to stretch its capsule

hydrodilatations
plural of hydrodilatation

hydrodilation
Misspelling of hydrodilatation.

hydrodimer
A dimer formed by means of hydrodimerization

hydrodimers
plural of hydrodimer

hydrodistillate
The product of hydrodistillation.

hydrodistillates
plural of hydrodistillate

hydroelectrolyte
electrolytes and the water they are dissolved in (especially when out of balance)

hydroesterification
Addition of carboxylic acid to an alkene or alkyne in the presence of a catalyst to form an ester.

hydrofining
A chemical engineering process in which hydrocarbons are hydrogenated and desulfurized catalytically as part of oil refining

hydrofluorate
Any of certain salts of hydrofluoric acid.

hydrofluoride
A compound of hydrofluoric acid with an organic base such as an amine

hydrofluorides
plural of hydrofluoride

hydrofluorination
Reaction with hydrogen fluoride (HF) or hydrofluoric acid, HF(aq).

hydrofluorinations
plural of hydrofluorination

hydrofluoroether
Any of a class of ethers (many of them polymeric) having a mixture of alkyl and fluorinated alkyl substituents

hydrofluoroethers
plural of hydrofluoroether

hydroformate
An engineering material produced by hydroforming

hydroformates
plural of hydroformate

hydroforming
A cost-effective way of shaping malleable metals into lightweight, stiff pieces by means of high-pressure hydraulic fluid
The reaction of petroleum with hydrogen

hydrogelator
Any substance that forms a hydrogel

hydrogelators
plural of hydrogelator

hydrogenation
The chemical reaction of hydrogen with another substance, especially with an unsaturated organic compound, and usually under the influence of temperature, pressure and catalysts.

hydrogenations
plural of hydrogenation

hydrogenisation
Alternative form of hydrogenization.

hydrogenite
A dry mixture of chemicals that produces hydrogen upon the addition of water

hydrogenites
plural of hydrogenite

hydrogenium
Hydrogen, especially when formerly considered as a metal.

hydrogenization
Alternative form of hydrogenation.

hydrogenoxalate
The univalent group -HC₂O₄, or any salt containing it.

hydrogenoxalates
plural of hydrogenoxalate