Definition of obtusion in English:

obtusion

noun

Medicine
rare
  • The action of blunting or dulling; the condition of being blunted or dulled; (now, Medicine) = obtundation.

Origin

Early 17th century. From Middle French, French obtusion action of blunting or dulling, dullness of mind from post-classical Latin obtusion-, obtusio action of blunting or dulling, condition of being blunted or dulled (Vetus Latina) from classical Latin obtūs-, past participial stem of obtundere + -iō.

Pronunciation

obtusion

/əbˈtʃuːʒn//əbˈtjuːʒn//ɒbˈtjuːʒn/