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The following statistics are based on the British National Corpus, so they are representative for the British English.

Distribution of usage frequency for the most common synonyms of the noun reaction:


Reaction is a member of the word family react, included in the Academic Word List by Dr. Averil Coxhead, which contains the 570 most frequent word families used in academic texts from a variety of subject areas, of interest for students that learn the words most needed to study at tertiary institutions.

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Definition of the noun reaction

What does reaction mean as a name of something?

Reaction is one of the top 1000 most common nouns in the English language.

noun - plural: reactions

  1. (chemistry) a process in which one or more substances are changed into others
  2. an idea evoked by some experience
    • example: his reaction to the news was to start planning what to do
    • lexical domain: Cognitive Processes - nouns denoting cognitive processes and contents
    • more generic words: idea / thought = the content of cognition
  3. a bodily process occurring due to the effect of some antecedent stimulus or agent
  4. (mechanics) the equal and opposite force that is produced when any force is applied to a body
    • example: every action has an equal and opposite reaction
    • domain: mechanics
    • lexical domain: Natural Phenomena - nouns denoting natural phenomena
    • more generic word: force = the influence that produces a change in a physical quantity
  5. a response that reveals a person's feelings or attitude
    • examples: he was pleased by the audience's reaction to his performance | John feared his mother's reaction when she saw the broken lamp
    • lexical domain: Natural Phenomena - nouns denoting natural phenomena
    • more generic word: response = a result
  6. extreme conservatism in political or social matters
    • example: the forces of reaction carried the election
    • lexical domain: Cognitive Processes - nouns denoting cognitive processes and contents
    • more generic words: conservatism / conservativism = a political or theological orientation advocating the preservation of the best in society and opposing radical changes
  7. doing something in opposition to another way of doing it that you don't like
    • example: his style of painting was a reaction against cubism
    • lexical domain: Acts - nouns denoting acts or actions
    • more generic words: opposition / resistance = the action of opposing something that you disapprove or disagree with
    • more specific word: backlash = an adverse reaction to some political or social occurrence

Alternative definition of the noun reaction


  1. An action or statement in response to a stimulus or other event
  2. [chemistry] A transformation in which one or more substances is converted into another by combination or decomposition


Reaction is a musical group.

  • album: "Kill the Parasite"


Reaction is a record label.


  1. "Reaction" is the second album by American R&B singer Rebbie Jackson. The album released in 1986 and spawned two mildly successful singles, "Reaction" and "You Send the Rain Away", a duet with Robin Zander. "Ticket To Love" was going to be released as the second single and received a very limited promo release before being cancelled in favour of "You Send the Rain Away". The album-only track "Tonight I'm Yours", a duet with Isaac Hayes received substantial airplay but was not commercially released as a single.
  2. "Reaction" is a song by American R&B singer Rebbie Jackson and the title track from her album of the same name, released as a single in 1986. The single peaked at number fifteen on the Billboard dance chart and number sixteen on the Billboard R&B chart. The single was released on a 12" format, including an extended dance mix, radio edit, and dub. The single was also released in a 7" format, including a radio edit and instrumental version.
  3. "Reaction" is a musical single of Alex Gaudino & Jerma.
    • released on (8 years ago)
  4. "Reaction" a.k.a. "Reaction!" is a musical single of Mirror People.
    • released on
  5. "Reaction" is a musical album of Howard Tate.
    • released in (45 years ago)
  6. "Reaction" is a musical album of Latent Anxiety.
    • released on (7 years ago)
  7. "Reaction" is a musical album of Bob Marley & The Wailers.

Phrases with Reaction

Phrases starting with the word Reaction:

  1. Reaction Save
  2. reaction time
  3. reaction engine
  4. Reaction Vessel

Phrases ending with the word Reaction:

  1. Gut Reaction
  2. Sn1 Reaction
  3. Sn2 Reaction
  4. Half-reaction
  5. Name reaction
  6. aldol reaction
  7. chain reaction
  8. light reaction
  9. Mixed Reaction
  10. Redox Reaction
  11. immune reaction
  12. Suzuki Reaction
  13. anxiety reaction
  14. defence reaction
  15. defense reaction
  16. insulin reaction

View more phrases with the word Reaction in thesaurus!

Printed dictionaries and other books with definitions for Reaction

Click on a title to look inside that book (if available):

Google previewMarch's Advanced Organic Chemistry, Reactions, Mechanisms, and Structure (2016)

by CTI Reviews

The Barbier reaction is an organic reaction between an alkyl halide and a carbonyl group as an electrophilic substrate...

Google previewLectures on the Philosophy of History (2011)

by Georg Wilhelm Friedrich Hegel, Ruben Alvarado

The second reaction is that of individuals against legal authority and the state power, against subordination, universal conscription, the organization of the judiciary. This produced the isolation and therefore defencelessness of individuals.

Google previewThe Philosophy of History (2007)

by Georg W. F. Hegel

The second reaction is that of individuals against legal authority and the executive power — against subordination, and the military and judicial arrangements of the constitution. This produced the isolation and therefore defencelessness of ...

Google previewThe Family Communication Sourcebook (2006)

by Lynn H. Turner, Richard West

An active verbal reaction is an approach reaction in which recipients respond directly to the hurtful message and includes behaviors such as attacking the individual, defending themselves, and being sarcastic. An acquiescence reaction is an ...

Google previewOrganic Chemistry (2011)

An Acid—Base Approach by Michael B. Smith

Enthalpy is the term used to measure bond dissociation energy, • and ΔH° for a reaction is the difference in bond dissociation energy for bonds made (products) minus that for bonds broken (starting materials). This is products minus reactants: ...

Google previewThe Journal of Philosophy (1922)

A speech reaction is a direction to subsequent behavior: Look and see; listen and hear; jump, turn to the left — remarks addressed to another who is...

Google previewEcology of Fresh Waters (2013)

A View for the Twenty-First Century by Brian R. Moss

Such reaction is a measure of true solution. It also allows it to dissolve slightly polar organic compounds, particularly those with hydroxyl and amino groups, such as sugars, alcohols, amino acids, amides and organic bases. But it does not truly ...

Google previewLaw and Development in East and South-East Asia (2005)

by Christoph Antons

A second reaction is that in so far as law figures - if at all — in the vast literatures concerning the economic development of Japan it is with respect to the possibilities it affords of administrative discretion in pursuit of developmental ends. That is ...

Google previewLife , Science of Biology (2016)

by CTI Reviews

The polymerase chain reaction is a biochemical technology in molecular biology ...

Google previewMedical Pharmacology and Therapeutics (2013)

by Derek G. Waller, Tony Sampson

The zeroorder reaction is a uniform change in concentration C over time. (B) The firstorder reaction is an exponential curve in which concentrations fall fastest when they are highest. (C) Plotting the natural logarithm of the concentration (In ...

Google previewGeneral Chemistry (2014)

by Linus Pauling

The anode reaction is an oxidation reaction.

Google previewDiscovering Reality (2003)

Feminist Perspectives on Epistemology, Metaphysics, Methodology, and Philosophy of Science by Sandra Harding, Merrill B. Hintikka †

A first reaction is that feminist writings are quite tedious because they are repetitive. In this context, the fact that feminist writings would presumably say the same thing over and over again is not taken as a prima facie clue to the universality and ...

Google previewDictionary of Chemistry (2014)

by Andrew Hunt

Two half-equations combine to give an overall balanced equation for a redox reaction. Iron(III) ions can oxidize iodide ions to iodine. This can be shown as two halfequations: electron gain (reduction): Fe3+(aq) + e~ ----> Fe2+(aq) electron loss ...

Google previewEncyclopedia of Schizophrenia (2014)

Focus on Management Options by W. Wolfgang Fleischhacker, Ian P. Stolerman

Cross-References First-Generation Antipsychotics Phenothiazines Chronic Disappointment Reaction Synonyms Demoralization syndrome Definition A syndrome involving lowered or dysphoric mood that occurs in response to a perceived ...

Google previewEncyclopedia of Chemical Physics and Physical Chemistry: Applications (2001)

by Nicholas D. Spencer, John H. Moore

The general field of gas-surface reactions can be unified by classification into four groups, according to whether the products are volatile or involatile, and whether the reaction products incorporate atoms from the surface (see table C2. 18.1).

Google previewDictionary Of Chemistary

by Taniya Sachdeva

Concerted reaction It is a chemical reaction in which all bonds are made and broken in a single step. Condensation It is the change of water from its gaseous form, that is, water vapour into liquid water. In short, it is the liquefaction of vapour .

Google previewSzycher's Dictionary of Biomaterials and Medical Devices (1992)

by Michael Szycher

Pyrogenic reaction: fever produced by endotoxins from gram-positive bacteria . (4) Systemic toxicity: the dosage-related effect on the whole organism form an identifiable agent. (5) Sensitization: a condition of being more susceptible to ...

Google previewCondensed Encyclopedia of Polymer Engineering Terms (2012)

by Nicholas P Cheremisinoff

HALF-LIFE The term “half-life” is generally interpreted as meaning a "rate constant" in describing cross-linking reactions or catalyst activity in a polymerization reaction. With respect to Vulcanization, half-life is the time it takes one-half of any ...

Google previewA Dictionary of Chemical Terms (1920)

by James Fitton Couch

REACTING WEIGHT 159 REACTION Reacting Weight. The equivalent weight, q.v. Reaction. 1. A reaction is a process in which one form of matter is transformed into another form or other forms which have different properties. An energy ...

Google previewEncyclopedia of American Journalism (2007)

by Stephen L. Vaughn

Reaction. tothe. Report. Even before publication ofthe report,the Hutchins Commission came under fire fromthe press.It conducted meetingsin secret, broadly definedthe press toinclude radio,magazines, television andmotion pictures, and ...

Online dictionaries and encyclopedias with entries for Reaction

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Photos about Reaction

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View more pictures about Chain Reaction.

If you need related images for an article or a report, you can download stock photos:
Small photo of Rzeszow, Poland. 12 February, 2018: Facebook reaction: angry. A finger that chooses a sign.Small photo of Dry ice smoke reaction with pH indicatorSmall photo of Dry ice smoke reaction with pH indicatorSmall photo of Dry ice smoke reaction with pH indicatorSmall photo of Dry ice smoke reaction with pH indicatorSmall photo of Dry ice smoke reaction with pH indicatorSmall photo of Dry ice smoke reaction with pH indicator More...

Video language resources about Reaction

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View more videos about SN1 reaction, Chain Reaction, Mixed Reaction, Reaction Vessel, Nuclear reaction, Addition reaction, Chemical reaction, Grignard reaction, Maillard reaction, Diels-Alder Reaction, Condensation reaction, Substitution reaction, Idiosyncratic Reaction, and Friedel-Crafts reaction.

See also the pronunciation examples of Reaction!

Sign language

Reaction video of Ben Bahan's Presentation "Impact of Sign Language Research"

Duration 02:33

Quotes about Reaction

A life of reaction is a life of slavery, intellectually and spiritually. One must fight for a life of action, not reaction. (Rita Mae Brown)
more quotes about reaction...

Scrabble value of R1E1A1C3T1I1O1N1

The value of this 8-letter word is 10 points. It is included in the first and second editions of the Official Scrabble Players Dictionary.

Anagrams of REACTION

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See also the blanagrams of Reaction!

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