系けい統とう分ぶん類るい学がく

noun

systematics; phylogenetic systematics; systematic taxonomy

Technical term in biology for the study of the diversification of living forms, both past and present, and the relationships among living things through time. Often used in academic contexts.

• 系けい統とう分ぶん類るい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。

  Systematics is the discipline that elucidates the evolutionary history of organisms.

• 彼かれは大だい学がくで系けい統とう分ぶん類るい学がくを専せん攻こうしている。

  He is majoring in systematic biology at university.