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CD4

American  

noun

  1. a protein on the surface of T cells and other cells, functioning as a receptor for the AIDS virus antigen.


Etymology

Origin of CD4

1980–85; c(luster of) d(ifferentiation) 4

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

CD4 count is the number of CD4 T-cells, a type of white blood cell, in the blood.

From Science Daily • May 7, 2024

HIV infects CD4 white blood cells and weaves a DNA copy of its genes—the provirus—into human chromosomes.

From Science Magazine • Mar. 7, 2024

Together, the new findings underscore the importance of specific studies on the immune response among people with HIV, especially those with lower CD4 white blood cells.

From Science Daily • Jan. 12, 2024

All 27 deaths in the study were among people who had fewer than 200 CD4 cells.

From New York Times • Feb. 21, 2023

Tests showed the patient was also HIV-positive, which he had not known, and that his blood had few CD4 cells, critical immune cells that HIV attacks.

From Science Magazine • Feb. 20, 2023