antagonist

Compound that inhibits the effect of a hormone or drug; the opposite of agonist.

Antagonist

The chief opponent of the protagonist in a drama.

antagonist

Type: Term Pronunciation: an-tag′ŏ-nist Definitions: 1. Something opposing or resisting the action of another; certain structures, agents, diseases, or physiologic processes that tend to neutralize or impede the action or effect of others.
Found on http://www.medilexicon.com/medicaldictionary.php?t=4556

Antagonist

An herb or substance that opposes the action of some other agent or medicine, especially the toxic effects of alkaline poisons.
Found on http://www.motherherbs.com/herb-glossary.html

antagonist

An agent or substance that counteracts the action of another.
Found on http://ppathw3.cals.cornell.edu/glossary/Defs_A.htm

Antagonist

A drug or other molecule that blocks receptors. Antagonists inhibit the effects of agonists.
Found on http://www.bbc.co.uk/radio4/reith2003/glossary.shtml

antagonist

[n] - a muscle that relaxes while another contracts 2. [n] - a drug that neutralizes or counteracts the effects of another drug
Found on http://www.webdictionary.co.uk/definition.php?query=antagonist

Antagonist

a structure that opposes or counteracts another structure.
Found on http://www.cosmeticdentistryguide.co.uk/glossary.html

Antagonist

Muscle that counteracts the agonist, lengthening when the agonist muscle contracts.
Found on https://www.encyclo.co.uk/local/20470

Antagonist

A molecule that blocks the ability of a given chemical to bind to its receptor, preventing a biological response.
Found on http://www.combichemistry.com/medical-chemistry-glossary.html

Antagonist

A substance which reduces or prevents the effect of an agonist at a receptor site.
Found on http://www.vernalis.com/component/content/article/101-placing-and-open-offe

Antagonist

A muscle that relaxes while another contracts; 'when bending the elbow the triceps are the antagonist'
Found on http://www.dwp.gov.uk/medical/med_conditions/glossary.html

Antagonist

An antagonist is a drug or a compound that opposes the physiological effects of another. At the receptor level, it is a chemical entity that opposes the receptor-associated responses normally induced by another bioactive agent.
Found on http://www.chem.qmul.ac.uk/iupac/medchem/ah.html

Antagonist

A substance capable of binding to a molecular target to neutralise or counteract a physiological reaction.
Found on http://www.astrazeneca.com/about-us/glossary/?letter=A

Antagonist

refers either to: (i) an agent that blocks the action of an agonist at its membrane receptor; or (ii) a muscle that opposes those muscles performing a specific movement around a joint. For example, the triceps muscle acts antagonistically to the biceps muscle in elbow flexion
Found on http://www.medicalneuroscience.com/ngloss.htm

Antagonist

Antagonist: In biochemistry, an antagonist acts against and blocks an action. For example, insulin lowers the level of glucose (sugar) in the blood, whereas another hormone called glucagon raises it; therefore, insulin and glucagon are antagonists. An antagonist is the opposite of an agonist which stimulates an action. Antagonists and agonists are ...
Found on http://www.medterms.com/script/main/art.asp?articlekey=7836

Antagonist

Muscle that counteracts the agonist, lengthening when the agonist muscle contracts.
Found on https://www.encyclo.co.uk/local/20966

Antagonist

An·tag'o·nist noun [ Latin antagonista , Greek ...; ... against + ... combatant, champion, from ...: confer French antagoniste . See Antagonism .] 1. One who contends with another, especially in combat; an adversary; an opponent. « Antagonist of Heaven's Alm...
Found on http://www.encyclo.co.uk/webster/A/90

antagonist

<pharmacology> A substance that tends to nullify the action of another, as a drug that binds to a cell receptor without eliciting a biological response. ... Origin: Gr. Antagonistes = an opponent ... (18 Nov 1997) ...
Found on http://www.encyclo.co.uk/local/20973

antagonist

noun a muscle that relaxes while another contracts; `when bending the elbow the triceps are the antagonist`
Found on https://www.encyclo.co.uk/local/20974

antagonist

(an-tag´ә-nist) antagonistic muscle. a substance that tends to nullify the action of another, as a drug that binds to a cellular receptor for a hormone, neurotransmitter, or another drug blocking the action of that substance without producing any physiologic effect itself. See also blocking agent.&nb...
Found on http://www.encyclo.co.uk/local/21001

Antagonist

• (a.) Antagonistic; opposing; counteracting; as, antagonist schools of philosophy. • (n.) A muscle which acts in opposition to another; as a flexor, which bends a part, is the antagonist of an extensor, which extends it. • (n.) One who contends with another, especially in combat; an adversary; an opponent. • (n.) A medicine whi...
Found on http://thinkexist.com/dictionary/meaning/antagonist/

antagonist

(from the article `plant disease`) Biological control of plant diseases involves the use of organisms other than humans to reduce or prevent infection by a pathogen. These organisms ...
Found on http://www.britannica.com/eb/a-z/a/80

antagonist

in literature, the principal opponent or foil of the main character, who is referred to as the protagonist, in a drama or narrative. The word is from ...
Found on http://www.britannica.com/eb/a-z/a/80

antagonist

(Gr. antagonists an opponent) a substance that tends to nullify the action of another, as a drug that binds to a cell receptor without eliciting a biological response.
Found on http://users.ugent.be/~rvdstich/eugloss/DIC/dictio06.html
No exact match found