Term: thymus primordium lymphocyte
Name: thymus primordium
Synonyms: thymic rudiment
Definition: A small outgrowth of the pharyngeal epithelium that is the site of lymphocyte cell production.
Ontology: Anatomy Ontology [ZFA:0001077]

Name: lymphocyte
Synonyms: lymphocytes
Definition: A cell of the B cell, T cell, or natural killer cell lineage.
Ontology: Anatomy Ontology [ZFA:0009250]