Latin edit

Etymology edit

From re- +‎ āctiō; compare reagō.

Noun edit

reāctiō f (genitive reāctiōnis); third declension

  1. (Medieval Latin, New Latin) reaction
  2. (New Latin, physics, chemistry) reaction

Declension edit

Third-declension noun.

Case Singular Plural
Nominative reāctiō reāctiōnēs
Genitive reāctiōnis reāctiōnum
Dative reāctiōnī reāctiōnibus
Accusative reāctiōnem reāctiōnēs
Ablative reāctiōne reāctiōnibus
Vocative reāctiō reāctiōnēs

Descendants edit