Definition of antigen-presenting cell in English:

antigen-presenting cell

noun

Immunology
  • Any cell that assists in the production of immune responses by presenting antigen; especially any of several types of cell with monocytic lineage that present antigen in association with class II MHC molecules, to helper T lymphocytes.

Origin

1970s; earliest use found in Proceedings of the National Academy of Sciences of the United States of America.