反はん復ぷく説せつ

noun

biogenetic law; recapitulation theory

Technical term in biology; the theory that an organism's embryonic development (ontogeny) repeats the evolutionary history of its species (phylogeny).

• 反はん復ぷく説せつは、ヘッケルによって提てい唱しょうされた。

  The recapitulation theory was proposed by Haeckel.

• 発はっ生せい学がくの授じゅ業ぎょうで反はん復ぷく説せつについて学まなんだ。

  I learned about the biogenetic law in embryology class.