| Learning / English Dictionary |
CHEMICAL REACTION
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
(chemistry) a process in which one or more substances are changed into others
Example:
there was a chemical reaction of the lime with the ground water
Synonyms:
chemical reaction; reaction
Classified under:
Nouns denoting natural processes
Hypernyms ("chemical reaction" is a kind of...):
chemical action; chemical change; chemical process ((chemistry) any process determined by the atomic and molecular composition and structure of the substances involved)
Domain category:
chemical science; chemistry (the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions)
Hyponyms (each of the following is a kind of "chemical reaction"):
saponification (a chemical reaction in which an ester is heated with an alkali (especially the alkaline hydrolysis of a fat or oil to make soap))
reducing; reduction (any process in which electrons are added to an atom or ion (as by removing oxygen or adding hydrogen); always occurs accompanied by oxidation of the reducing agent)
photochemical reaction (a chemical reaction produced by the action of light)
oxidation-reduction; oxidoreduction; redox (a reversible chemical reaction in which one reaction is an oxidation and the reverse is a reduction)
oxidation; oxidisation; oxidization (the process of oxidizing; the addition of oxygen to a compound with a loss of electrons; always occurs accompanied by reduction)
neutralisation; neutralisation reaction; neutralization; neutralization reaction (a chemical reaction in which an acid and a base interact with the formation of a salt; with strong acids and bases the essential reaction is the combination of hydrogen ions with hydroxyl ions to form water)
hydrolysis (a chemical reaction in which water reacts with a compound to produce other compounds; involves the splitting of a bond and the addition of the hydrogen cation and the hydroxide anion from the water)
exothermic reaction (a chemical reaction accompanied by the evolution of heat)
endothermic reaction (a chemical reaction accompanied by the absorption of heat)
elimination reaction (a chemical reaction in which a molecule decomposes to two different molecules)
double decomposition; double decomposition reaction; metathesis (a chemical reaction between two compounds in which parts of each are interchanged to form two new compounds (AB+CD=AD+CB))
displacement; displacement reaction ((chemistry) a reaction in which an elementary substance displaces and sets free a constituent element from a compound)
chemical decomposition reaction; decomposition; decomposition reaction ((chemistry) separation of a substance into two or more substances that may differ from each other and from the original substance)
chemical equilibrium; equilibrium (a chemical reaction and its reverse proceed at equal rates)
chain reaction (a series of chemical reactions in which the product of one is a reactant in the next)
aldol reaction (a reaction of aldehydes resulting in an aldol)
addition reaction (a chemical reaction in which one molecule is added to another)
Context examples:
A statement written in symbols that two objects, e.g. mathematical expressions, or arrays of symbols representing a chemical reaction, are equal under certain conditions.
(Equation, NCI Thesaurus)
A chemical reaction that uses water to break down a compound.
(Hydrolysis, NCI Dictionary)
A series of anaerobic chemical reactions that cells utilize to produce energy.
(Glycolysis, NCI Thesaurus)
Molecules that catalyze a chemical reaction.
(Enzyme, NCI Thesaurus)
A protein that speeds up chemical reactions in the body.
(Enzyme, NCI Dictionary)
Issue associated with an unexpected or inappropriate chemical reaction or effect.
(Improper Chemical Reaction Medical Device Problem, Food and Drug Administration)
A type of immunoassay in which the antigen-antibody complex is quantified using light emission, which is generated from a chemical reaction.
(Immunochemiluminometric Assay, NCI Thesaurus)
A chemical reaction in which a water molecule is added to a compound.
(Hydrolysis, NCI Thesaurus)
The 'test tube' chemical reactions of lipids-not involving enzymes
(Lipid Chemistry, NCI Thesaurus)
Biosensors are able to measure biological or chemical reactions and generate a signal proportional to the concentration of a particular substance.
(Brazilian researchers eye biosensors to monitor diabetes, SciDev.Net)
