The process in which a relatively unspecialized cell acquires the specialized features of a mononuclear cell. [ GOC:TermGenie http://purl.obolibrary.org/obo/CL_0000842 http://purl.obolibrary.org/obo/go/references/0000086 http://www.ncbi.nlm.nih.gov/pubmed/24759906 ]

This is just here as a test because I lose it