T cell

GC: n

S: NSC – https://www.newscientist.com/article/2253386-what-are-t-cells-and-why-have-they-become-a-political-football/ (last access: 22 October 2020); SDir – https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/t-cell (last access: 22 October 2020).

N: 1. – T (letter): Twentieth letter of the English alphabet. The T-cell (1970) so called because they are derived from the thymus.

– cell (n): Early 12c., “small monastery, subordinate monastery” (from Medieval Latin in this sense), later “small room for a monk or a nun in a monastic establishment; a hermit’s dwelling” (c. 1300), from Latin cella “small room, store room, hut,” related to Latin celare “to hide, conceal,” from PIE root *kel- (1) “to cover, conceal, save”).

2. T cell, also called T lymphocyte, type of leukocyte (white blood cell) that is an essential part of the immune system. T cells are one of two primary types of lymphocytes—B cells being the second type—that determine the specificity of immune response to antigens (foreign substances) in the body.

3. A lymphocyte that develops in the bone marrow and then migrates to the thymus, where it begins to mature.

4. T cells circulate throughout the body and are essential for the specific immune response. Subpopulations of T cells include helper (T4) cells, suppressor (T8) cells, and two types of cytotoxic cells, natural killer cells and cytotoxic T cells.

S: 1. OED – https://www.etymonline.com/search?q=T+cell (last access: 22 October 2020). 2. EncBrit – https://www.britannica.com/science/T-cell (last access: 22 October 2020). 3&4. TERMIUM PLUS – https://www.btb.termiumplus.gc.ca/tpv2alpha/alpha-eng.html?lang=eng&i=1&srchtxt=T+cell&codom2nd_wet=1#resultrecs (last access: 22 October 2020).

OV: T-cell

S: GDT – http://gdt.oqlf.gouv.qc.ca/ficheOqlf.aspx?Id_Fiche=8372969 (last access: 22 October 2020)

SYN: T lymphocyte, T-lymphocyte, thymus-derived lymphocyte.

S: GDT – http://gdt.oqlf.gouv.qc.ca/ficheOqlf.aspx?Id_Fiche=8372969 (last access: 22 October 2020)

CR: coronavirus, COVID-19, immunoglobulin M.