concussion

con-cus-sion · noun

imported

Definitions

noun

  1. 1.

    A temporary brain injury caused by a blow to the head.

  2. 2.

    A violent shock from impact.

Forms

plural: concussions

Phrases & expressions

  • concussion protocol — medical procedures for head injuries
  • post-concussion syndrome — lasting effects after a concussion
  • suffer a concussion — to sustain a brain injury

Related words

Etymology

From Latin "concussio" meaning a shaking, from "concutere" (to shake violently), from "con-" (together) and "quatere" (to shake).