自し然ぜん発はっ生せい説せつ

noun

theory of spontaneous generation

Historical biological theory that living organisms can arise from nonliving matter. Now discredited.

• パスツールの実じっ験けんは自し然ぜん発はっ生せい説せつを否ひ定ていした。

  Pasteur's experiment disproved the theory of spontaneous generation.