cluster determinant

initialism: CD
https://doi.org/10.1351/goldbook.13017
Cluster of antigens representing a cell surface marker with which antibodies react. Not to be confused with cluster of differentiation (CD) antigen.
Source:
PAC, 2012, 84, 1113. (IUPAC glossary of terms used in immunotoxicology (IUPAC Recommendations 2012)) on page 1145 [Terms] [Paper]