1. Noun. (electronics) a 120-mm (5-inch) CD (compact disc) ¹
2. Noun. (music) a 5-inch CD single ¹
¹ Source: wiktionary.com
Medical Definition of CD5
1. Glycoproteins expressed on all mature T-cells, thymocytes, and a subset of mature B-cells. Antibodies specific for CD5 can enhance T-cell receptor-mediated T-cell activation. The B-cell-specific molecule CD72 is a natural ligand for CD5.
(12 Dec 1998)
