has part develops from lacks_part common lymphoid progenitor lymphocyte A lymphocyte is a leukocyte commonly found in the blood and lymph that has the characteristics of a large nucleus, a neutral staining cytoplasm, and prominent heterochromatin. BTO:0000775 CALOHA:TS-0583 Editors note: consider adding taxon constraint to vertebrata (PMID:18025161) FMA:62863 VHOG:0001535 cell leukocyte nongranular leukocyte nucleate cell neutrophillic cytoplasm increased nucleus size heterochromatin secretory granule