Look up: antigen

1. antigen
   (Ag) Type: Term Pronunciation: an′ti-jen Definitions: 1. Any substance that, as a result of coming in contact with appropriate cells, induces a state of sensitivity or immune responsiveness and that reacts in a demonstrable way with antibodies or immune cells of the sensitized subject in vivo or in vitro. Modern usage tends to ...
   Found on http://www.medilexicon.com/medicaldictio
   
   
2. Antigen
   is any of various substances that are foreign to the body and, when introduced into the body, stimulate production of antibodies. Antigens include protein or polysaccharide such as bacteria, bacterial toxins, viruses, foreign blood cells, and the cells of transplanted organs.
   Found on http://www.skincarenet.org/skin-glossary
   
   
3. Antigen
   Any foreign substance, such as a virus, bacterium, or protein, that elicits an immune response by stimulating the production of antibodies. (See Antigenic determinant, antigenic switching.)
   Found on http://filebox.vt.edu/cals/cses/chagedor
   
   
4. antigen
   Molecule of carbohydrate or protein which stimulates the production of an antibody, with which it reacts specifically.
   Found on http://ppathw3.cals.cornell.edu/glossary
   
   
5. antigen
   Foreign substance that when introduced into body tissues, induces an immune response by a specific antibody. See antibody.
   Found on http://www.encyclo.co.uk/visitor-contrib
   
   
6. antigen
   [n] - any substance (as a toxin or enzyme) that stimulates the production of antibodies
   Found on http://www.webdictionary.co.uk/definitio
   
   
7. Antigen
   A substance foreign to the body which causes the production of antibodies. See Lymphocyte.
   Found on http://www.encyclo.co.uk/local/20474
   
   
8. Antigen
   Component of a foreign biological substance (transplanted tissue, invading virus, etc.), which stimulates the host`s immune system to attack that foreign substance by elaborating an antibody
   Found on http://www.encyclo.co.uk/local/20605
   
   
9. Antigen
   Foreign substance stimulating an immune response by being recognised as 'non-self.'
   Found on http://www.encyclo.co.uk/visitor-contrib
   
   
10. Antigen
    The descriptor applied to any substance that produces a specific immune response when it enters the tissues of an animal.
    Found on http://www.chemicalglossary.net/definiti
    
    
11. Antigen
    The descriptor applied to any substance that produces a specific immune response when it enters the tissues of an animal.
    Found on http://www.encyclo.co.uk/visitor-contrib
    
    
12. Antigen
    A substance that when introduced into the body causes the formation of antibodies
    Found on http://www.dwp.gov.uk/medical/med_condit
    
    
13. Antigen
    A substance, usually a protein, that induces the formation of defending antibodies.
    Found on http://www.swsbm.com/ManualsMM/MedHerbGl
    
    
14. Antigen
    A substance that stimulates the production of antibodies.
    Found on http://www.gadsbywicks.co.uk/uploaded/38
    
    
15. Antigen
    Antigen: A substance that is capable of causing the production of an antibody. Antigens may or may not lead to an allergic reaction. Allergens are antigens that cause an allergic reaction and the production of IgE.
    Found on http://www.medterms.com/script/main/art.
    
    
16. antigen
    a substance which can set off a specific immunoreaction in the human body exposed to it,giving rise to an allergic disease Category: Medicine • Biological substance introduced into the blood,e.g.vaccine,to stimulate protective antibodies Category: Management in the public and private sector
    Found on http://www.mijnwoordenboek.nl/definition
    
    
17. antigen
    A substance inducing and reacting in an immune response. Normally antigens have molecular weights greater than about 1 kD. The antigenic determinant group is termed an epitope and the association of this with a carrier molecule (that may be part of the same molecule) makes it active as an antigen. Thus dinitrophenol-modified human serum albumin is antigenic to humans, dinitrophenol being the hapten. Usually antigens are foreign to the animal in w …
    Found on http://www.encyclo.co.uk/visitor-contrib
    
    
18. antigen
    Virus coded cell surface antigens that appear soon after the infection of a cell by virus, but before virus replication has begun. ... See: early gene. ... (18 Nov 1997) ...
    Found on http://www.mondofacto.com/facts/dictiona
    
    
19. antigen
    noun any substance (as a toxin or enzyme) that stimulates an immune response in the body (especially the production of antibodies)
    Found on http://wordnetweb.princeton.edu/perl/web
    
    
20. antigen
    (an´tĭ-jәn) any substance capable, under appropriate conditions, of inducing a specific immune response and reacting with the products of that response; that is, with specific antibody or specifically sensitized T lymphocytes, or both. Antigens may be soluble substances, such as toxins and foreign proteins, or part...
    Found on http://www.encyclo.co.uk/local/21001
    
    
21. antigen
    foreign substance that, when introduced into the body, is capable of stimulating an immune response, specifically activating lymphocytes, which are ... [29 related articles]
    Found on http://www.britannica.com/eb/a-z/a/83
    
    
22. antigen
    (antibody + Gr. gennan to produce) any substance which is capable, under appropriate conditions, of inducing a specific immune response and of reacting with the products of that response, that is, with specific antibody or specifically sensitized T-lymphocytes, or both. Antigens may be soluble subst...
    Found on http://users.ugent.be/~rvdstich/eugloss/
    
    
23. Antigen
    Any foreign material that is specifically bound by specific antibody or specific lymphocytes; also used loosely to describe materials used for immunization. Antigens may also be immunogens if they are able to trigger an immune response, or haptens if not.
    Found on http://www.microbiologybytes.com/iandi/I
    
    
24. Antigen
    An antigen is any substance that causes the immune system to produce antibodies against it. The substance may be from the environment or formed within the body. The immune system will kill or neutralize any antigen that is recognized as a foreign and potentially harmful invader. The term originally...
    Found on http://en.wikipedia.org/wiki/Antigen
    
    
25. antigen
    Any substance that the body regards as foreign and which therefore triggers a response by the immune system. Antigens are usually proteins and are commonly found on the surface of infectious organisms (including some bacteria and viruses), transfused blood cells, and organ transplants.
    Found on http://www.daviddarling.info/encyclopedi