Full meaning of PhyloCode is International Code of Phylogenetic Nomenclature. It is designed so that it may be used concurrently with the existing codes based on rank-based nomenclature. PhyloCode proposes to regulate  hylogenetic nomenclature by providing rules for how to decide which associations of names and definitions will be considered established, which of those will be considered homonyms or synonyms, and which one of a set of synonyms or homonyms will be considered accepted. It is a formal set of rules governing phylogenetic nomenclature.