T-cell definition
Any of the lymphocytes that mature in the thymus and have the ability to recognize specific peptide antigens through the receptors on their cell surface.
noun
Any of the lymphocytes that are affected by the thymus and are involved in rejecting foreign tissue, regulating cellular immunity, and controlling the production of antibodies in the presence of an antigen.
noun
Any of a class of lymphocytes, including the helper T cells and cytotoxic T lymphocytes, that form in bone marrow and mature in the thymus. T cells are activated when receptors on the cell surface recognize specific antigens.
noun
Any of the lymphocytes that develop in the thymus gland and that act in the immune system by binding antigens to receptors on the surface of their cells in what is called the cell-mediated immune response . T cells are also involved in the regulation of the function of B cells.
(immunology) A lymphocyte, from the thymus, that can recognise specific antigens and can activate or deactivate other immune cells.
noun
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Alternative spelling of T cell.
noun
Other Word Forms
Noun
Singular:
t-cell
Plural:
t-cellsOrigin of t-cell
- t(hymus-derived) cell
From American Heritage Dictionary of the English Language, 5th Edition