(obsolete) A violent shock or agitation.

plural of concussation

In a concussive manner.

The quality of being concussive.

A violent collision or shock.

simple past tense and past participle of concuss

Knocked out; temporarily confused or unconscious due to a blow to the head.

present participle of concuss

Third-person singular simple present indicative form of concuss

(transitive) To injure the brain of, usually temporarily, by violent impact. / (law) To force to do something, or give up something, by intimidation; to coerce.