t lymphocyte

t lym·pho·cyte

T t

Definition of t lymphocyte words

noun t lymphocyte any of several closely related lymphocytes, developed in the thymus, that circulate in the blood and lymph and orchestrate the immune system's response to infected or malignant cells, either by lymphokine secretions or by direct contact: helper T cells recognize foreign antigen on the surfaces of other cells, then they stimulate B cells to produce antibody and signal killer T cells to destroy the antigen-displaying cells; subsequently suppressor T cells return the immune system to normal by inactivating the B cells and killer T cells. 1

before 1965

One of the 2% newest English words

1965-70; T(hymus-derived)

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exclamation

This term is known only to a narrow circle of people with rare knowledge. Only 1% of English native speakers know the meaning of this word.

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