Look up: Acquired Immunity

1. Acquired immunity
   Immunity which develops in response to foreign antigens in the body, involving either the production of antibodies or activated T cells which react specifically with the foreign antigen.
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2. acquired immunity
   [n] - immunity to a particular disease that is not innate but has been acquired during life
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3. Acquired immunity
   Acquired immunity: Immunity acquired by infection or vaccination (active immunity) or by the transfer of antibody or lymphocytes from an immune donor (passive immunity). Acquired immunity is in contrast to innate immunity (natural immunity).
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4. acquired immunity
   Classically, the reaction of an organism to a new antigenic challenge and the retention of a memory of this, as opposed to innate immunity. In modern terms, the clonal selection and expansion of a population of immune cells in response to a specific antigenic stimulus and the persistence of this clone.
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5. acquired immunity
   <immunology> A form of cellular defense which identifies certain foreign substances (antigens) as harmful to the body. For this reason, the body can acquire resistance to a particular foreign agent. ... These foreign agents are then attacked by sensitised T lymphocytes (cellular immunity). Whi...
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6. acquired immunity
   noun immunity to a particular disease that is not innate but has been acquired during life; immunity can be acquired by the development of antibodies after an attack of an infectious disease or by a pregnant mo...
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7. acquired immunity
   specific immunity attributable to the presence of antibody and to heightened reactivity of lymphoid cells that can form antibodies in cell-mediated immunity, and of phagocytic cells; this is seen after exposure to certain infectious agents and their antigens, as well as in adoptive immunity.
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8. Acquired Immunity
   Immunity resulting from exposure to disease after birth. Immunity can be acquired by the development of antibodies after an attack of an infectious disease. Broader term(s): Immunity
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9. acquired immunity
   Type: Term Definitions: 1. resistance resulting from previous exposure of an individual in question to an infectious agent or antigen; it may be active and specific, as a result of naturally acquired (apparent or inapparent) infection or intentional vaccination (artificial active immunity); or it ma...
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10. Acquired Immunity
    Immunity obtained either from the development of antibodies in response to exposure to an antigen, as from vaccination or an attack of an infectious disease, or from the transmission of antibodies, as from mother to fetus through the placenta or the injection of antiserum. Results in resistance to further infection.
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