immune system
noun Date: circa 1919 the bodily system that protects the body from foreign substances, cells, and tissues by producing the immune response and that includes especially the thymus, spleen, lymph nodes, special deposits of lymphoid tissue (as in the gastrointestinal tract and bone marrow), macrophages, lymphocytes including the B cells and T cells, and antibodies

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • immune system — n the bodily system that protects the body from foreign substances, cells, and tissues by producing the immune response and that includes esp. the thymus, spleen, lymph nodes, special deposits of lymphoid tissue (as in the gastrointestinal tract… …   Medical dictionary

  • immune system — immune systems N COUNT: usu sing Your immune system consists of all the organs and processes in your body which protect you from illness and infection …   English dictionary

  • immune system — im*mune sys tem, n. (Biol.) The complex of cells, cellular processes, and substances within and diffused throughout an organism which allow the organism to counteract or destroy noxious foreign substances introduced into the body, destroy… …   The Collaborative International Dictionary of English

  • immune system — n. the system that protects the body from disease by producing antibodies …   English World dictionary

  • Immune system — A scanning electron microscope image of a single neutrophil (yellow), engulfing anthrax bacteria (orange). An immune system is a system of biological structures and processes within an organism that protects against disease by identifying and… …   Wikipedia

  • immune system — Anat. a diffuse, complex network of interacting cells, cell products, and cell forming tissues that protects the body from pathogens and other foreign substances, destroys infected and malignant cells, and removes cellular debris: the system… …   Universalium

  • immune system — noun a system (including the thymus and bone marrow and lymphoid tissues) that protects the body from foreign substances and pathogenic organisms by producing the immune response • Hypernyms: ↑system • Part Meronyms: ↑marrow, ↑bone marrow,… …   Useful english dictionary

  • immune system — UK / US noun [countable] Word forms immune system : singular immune system plural immune systems the system in your body that protects you against diseases …   English dictionary

  • immune system — im mune .system n the system by which your body protects itself against disease ▪ This flu is a warning to me that my immune system is not as strong as it ought to be …   Dictionary of contemporary English

  • immune system — immune′ sys tem n. imu a diffuse, complex network of interacting cells, cell products, and cell forming tissues that protects the body from pathogens and other foreign substances, destroys infected and malignant cells, and removes cellular debris …   From formal English to slang

  • immune system — system which forms antibodies and works against foreign bodies that attack the body …   English contemporary dictionary

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