系けい統とう学がくMeanings1nounphylogeneticsbiologyAcademic term in biology for the study of evolutionary relationships among organisms, often using genetic data.系けい統とう学がくは生せい物ぶつの進しん化かの歴れき史しを解かい明めいする学がく問もんだ。Phylogenetics is the study that elucidates the evolutionary history of organisms.