活かっ性せい酸さん素そ

noun

reactive oxygen species; free radicals

Chemistry term for highly reactive oxygen-containing molecules, such as superoxide and hydroxyl radicals, that can cause cellular damage at high concentrations.

• 活かっ性せい酸さん素そは老ろう化かや病びょう気きの原げん因いんの一ひとつと考かんがえられている。

  Reactive oxygen species are thought to be one cause of aging and disease.