| http://linkedlifedata.com/r... | skos:definition | "The process whose specific outcome is the progression of a pacemaker cell over time, from its formation to the mature state. Pacemaker cells are specialized cardiomyocytes that are responsible for regulating the timing of heart contractions." [GOC:mtg_cardiac_conduct_nov11, GOC:mtg_heart] | lld:geneontology |
