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agonist (biochemistry)

Definition:

a drug that can combine with a receptor on a cell to produce a physiological reaction

Class:

artifact noun (man-made objects)

Plural:

agonists

Original source:

Princeton WordNet

Etymology:

Greek agōnistēs "contestant" (a sense reflected in English in the early 17th...
(Source: Oxford Dictionary)  [more]

All senses of agonist...

Definition references  (+images)

Wikipedia:

Agonist

a chemical that binds to some receptor of a cell and triggers a response by that cell. Agonists often mimic the action of a naturally occurring substance. Whereas an agonist causes an action, an antagonist blocks the action of the agonist and an... (43 of 1168 words, 2 images)

en​.wikipedia​.org​/wiki​/Agonist

Agonist (disambiguation)

may refer to: Agonist, A person engaged in a contest, conflict, struggle, etc. (see agon) | Agonist, A person who is torn by inner conflict. | An advocate of the political theory of agonism (or 'agonistic pluralism'). | Agonist, a substance that binds... (40 of 148 words, 8 definitions)

en​.wikipedia​.org​/wiki​/Agonist (disambiguation)

Collins Dictionary:

agonist

any muscle that is opposed in action by another muscle | a competitor, as in an agon (16 of 325 words, 2 definitions, 3 usage examples, pronunciation)

www​.collinsdictionary​.com​/dictionary​/english​/agonist

Merriam-Webster:

agonist

one that is engaged in a struggle | a muscle that is controlled by the action of an antagonist with which it's paired ; a chemical substance capable ... (27 of 87 words, 2 definitions, 1 usage example, pronunciation)

www​.merriam-webster​.com​/dictionary​/agonist

Oxford Dictionary:

agonist [biochemistry] | agonism [derived]

a substance which initiates a physiological response when combined with a receptor. | [anatomy] : a muscle whose contraction moves a part of the body ... (24 of 87 words, 3 definitions, 1 usage example, pronunciation)

oxforddictionaries​.com​/definition​/english​/agonist

agonist | antagonist [near antonym, sense-specific] | agonism [derived]

Syllabification: (ag·o·nist) | [biochemistry] : a substance that initiates a physiological response when combined with a receptor. | [anatomy] : a ... (19 of 82 words, 4 definitions, pronunciations)

oxforddictionaries​.com​/definition​/american english​/agonist

Random House Dictionary:

agonist

a person engaged in a contest, conflict, struggle, etc., especially the protagonist in a literary work. | a person who is torn by inner conflict. | ... (24 of 67 words, 4 definitions, pronunciation)

dictionary​.infoplease​.com​/agonist

American Heritage Dictionary:

agonist

One involved in a struggle or competition. | [physiology] A contracting muscle that is resisted or counteracted by another muscle, the antagonist. | ... (21 of 64 words, 3 definitions, pronunciation)

www​.yourdictionary​.com​/agonist

New World Dictionary:

agonist

one who takes part in a struggle, as a main character in a drama | a muscle whose action on a joint or orifice is opposed by the action of another ... (30 of 40 words, 2 definitions, pronunciation)

www​.yourdictionary​.com​/agonist

Wiktionary:

agonist | agonists [plural]

Someone involved in a contest or battle (as in an agon). | The muscle that contracts while the other relaxes. | [biochemistry] A molecule that can combine with a receptor on a cell to produce a physiological reaction. (36 of 37 words, 3 definitions, 2 usage examples)

en​.wiktionary​.org​/wiki​/agonist

Britannica Encyclopedia:

drug [chemical agent]

any chemical substance that affects the functioning of living things and the organisms that infect them. Pharmacology, the science of drugs, deals ... (22 of 1390 words, 3 images)

www​.britannica​.com​/E​Bchecked​/topic​/171942​/drug

Macmillan British Dictionary:

drug [countable] | drugs [plural]

an illegal substance that affects someone physically or mentally when they ... | a substance that you take to treat a disease or medical problem (24 of 132 words, 2 definitions, 6 usage examples, pronunciation)

www​.macmillandictionary​.com​/dictionary​/british​/drug

drug [transitive, verb] | drugged [past tense] | drugging [present participle] | drugs [3rd-person singular present]

to give a drug to someone so that they will go to sleep or will become unconscious | to put a drug in food or drink so that someone will swallow it ... (31 of 76 words, 2 definitions, 2 usage examples, pronunciation)

www​.macmillandictionary​.com​/dictionary​/british​/drug 14

Cambridge Dictionary:

drug [entry 1]

any natural or artificially made chemical which is used as a medicine (12 of 30 words, 4 usage examples, pronunciation)

dictionary​.cambridge​.org​/dictionary​/british​/drug 1

drug [entry 2]

any natural or artificially made chemical which is taken for pleasure, to ... | any activity that you cannot stop doing (20 of 86 words, 2 definitions, 7 usage examples, pronunciation)

dictionary​.cambridge​.org​/dictionary​/british​/drug 2

drug [entry 3] | -gg- [past tense]

to give someone or something a chemical which causes a loss of feeling or unconsciousness (15 of 70 words, 3 usage examples, pronunciation)

dictionary​.cambridge​.org​/dictionary​/british​/drug 3

Encarta Dictionary:

agonist | agonists [plural]

somebody involved in a struggle, contest, or competition with somebody else (formal) | a muscle whose action is balanced by that of another associated ... (23 of 75 words, 3 definitions, pronunciation)

encarta​.msn​.com​/dictionary 1861584217​/definition​.html  [offline]

Etymology references

Oxford Dictionary:

agonist [biochemistry]

First use: early 20th century

Origin: Greek agōnistēs "contestant" (a sense reflected in English in the early 17th century), from agōn "contest"

oxforddictionaries​.com​/definition​/english​/agonist

Merriam-Webster:

agonist

First use: about 1623

Origin: Late Latin agonista competitor, from Greek agōnistēs, from agōnizesthai to contend, from agōn | antagonist

www​.merriam-webster​.com​/dictionary​/agonist

Online Etymology:

agonist

First use: 1914

Origin: in writings on Greek drama, from Greek agonistes, literally "combatant in the games".

www​.etymonline​.com​/index​.php term=agonist

American Heritage Dictionary:

agonist

Origin: Late Latin agōnista, contender, from Greek agōnistēs, from agōn, contest; see "agony".

www​.yourdictionary​.com​/agonist

Wiktionary:

agonist | agonists [plural]

Origin: Ancient Greek ἀγωνιστής (agōnistēs, "combatant, champion")

en​.wiktionary​.org​/wiki​/agonist

Collins Dictionary:

agonist

First use: 17th century

Origin: from Greek agōnagon

www​.collinsdictionary​.com​/dictionary​/english​/agonist

New World Dictionary:

agonist

Origin: back-formation from "antagonist"

www​.yourdictionary​.com​/agonist

Encarta Dictionary:

agonist | agonists [plural]

First use: Early 17th century

Origin: Greek agōnistēs "contestant, actor" from agōn "contest"

encarta​.msn​.com​/dictionary 1861584217​/definition​.html  [offline]

Audio references

Collins Dictionary:

agonist

Audio: British English pronunciation of "agonist"

www​.collinsdictionary​.com​/dictionary​/english​/agonist

the Free Dictionary:

agonist

Audio 1: North American English pronunciation of "agonist"

Audio 2: British English pronunciation of "agonist"

Audio 3: North American English pronunciation of "agonist" by speech synthesizer

www​.thefreedictionary​.com​/agonist

Google Dictionary:

agonist | agonists [plural]

Audio: English pronunciation of "agonist"

www​.google​.com​/#hl=en&tbs=dfn​:1&fp=1&q=agonist

Merriam-Webster Pronunciation:

agonist

Audio: North American pronunciation of "agonist"

www​.merriam-webster​.com​/audio​.php file=agonis​01 word=agonist

YourDictionary Audio:

agonist

Audio: North American English pronunciation of "agonist" by speech synthesizer

www​.yourdictionary​.com​/agonist

Page last updated: 2013-06-26

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