cells in the bloodstream that have one round nucleus; e.g., lymphocytes and monocytes. Usually, the majority of circulating PBMCs are lymphocytes.
peripheral blood mononuclear cells; includes lymphocytes and monocytes found in the blood
A Peripheral Blood Mononuclear Cell (PBMC) is a blood cell having a round nucleus, such as a lymphocyte or a monocyte. These blood cells are a critical component in the immune system to fight infection and adapt to intruders.