Home › Words › P › phenomephenomephenome means the whole set of phenotypic entities in a cell, tissue, organ, organisms, and species. This includes phenotypic traits with genotypic origins.EtymologyFrom pheno- + -ome.nounThe whole set of phenotypic entities in a cell, tissue, organ, organisms, and species. This includes phenotypic traits with genotypic origins.Definitions & examples from Wiktionary (CC BY-SA 3.0).