Look up: antagonist

1. 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/medicaldictio
   
   
2. Antagonist
   The chief opponent of the protagonist in a drama.
   Found on http://www.encyclo.co.uk/visitor-contrib
   
   
3. antagonist
   An agent or substance that counteracts the action of another.
   Found on http://ppathw3.cals.cornell.edu/glossary
   
   
4. Antagonist
   A drug or other molecule that blocks receptors. Antagonists inhibit the effects of agonists.
   Found on http://www.bbc.co.uk/radio4/reith2003/gl
   
   
5. 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/definitio
   
   
6. Antagonist
   a structure that opposes or counteracts another structure.
   Found on http://www.cosmeticdentistryguide.co.uk/
   
   
7. Antagonist
   Muscle that counteracts the agonist, lengthening when the agonist muscle contracts.
   Found on http://www.netfit.co.uk/glossary/fitness
   
   
8. 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-ch
   
   
9. Antagonist
   A substance which reduces or prevents the effect of an agonist at a receptor site.
   Found on http://www.vernalis.com/component/conten
   
   
10. 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_condit
    
    
11. 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
    
    
12. 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/glos
    
    
13. 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/nglos
    
    
14. 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 s...
    Found on http://www.medterms.com/script/main/art.
    
    
15. Antagonist
    Muscle that counteracts the agonist, lengthening when the agonist muscle contracts.
    Found on http://fitandhealthysolutions.com/termin
    
    
16. antagonist
    Compound that inhibits the effect of a hormone or drug; the opposite of agonist.
    Found on http://www.encyclo.co.uk/visitor-contrib
    
    
17. 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 opp...
    Found on http://www.encyclo.co.uk/webster/A/90
    
    
18. Antagonist
    An·tag'o·nist adjective Antagonistic; opposing; counteracting; as, antagonist schools of philosophy.
    Found on http://www.encyclo.co.uk/webster/A/90
    
    
19. 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.mondofacto.com/facts/dictiona
    
    
20. antagonist
    noun a muscle that relaxes while another contracts; `when bending the elbow the triceps are the antagonist`
    Found on http://wordnetweb.princeton.edu/perl/web
    
    
21. antagonist
    noun a drug that neutralizes or counteracts the effects of another drug
    Found on http://wordnetweb.princeton.edu/perl/web
    
    
22. 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
    
    
23. 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 ...
    Found on http://thinkexist.com/dictionary/meaning
    
    
24. 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
    
    
25. 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