leukocyte physiology trait leukocyte proliferation trait 2012-09-10T03:02:47Z caripark Trait.ontology Any measurable or observable characteristic related to the process by which any of the white blood cells (basophils, eosinophils, neutrophils, lymphocytes, dendritic cells, macrophages, mast cells, or monocytes) undergo expansion by cell division. VT:0010417