Definitions for "Concussion"
A shaking or agitation; a shock; caused by the collision of two bodies.
A condition of lowered functional activity, without visible structural change, produced in an organ by a shock, as by fall or blow; as, a concussion of the brain.
A violent blow to the head, usually resulting in the loss of consciousness.
Keywords:  pillow, prisoner, sofa
A prisoner's sofa pillow.
The unlawful forcing of another by threats of violence to yield up something of value.
an extremely dire closed wound, and requires emergency medical attention
Keywords:  hoof, shock, strikes, wave, ground
shock wave transmitted to the leg when the hoof strikes the ground.
a sudden trauma-induced alteration of the alert state
Continuous banging of the horse's feet on hard ground.
a serious medical condition especially when it occurs in a younger athlete
an acute event, and any related headaches should disappear