ETYM From Bump to strike, to thump.
1. A lump on the body caused by a blow.
2. An impact (as from a collision); SYN. blow.

ETYM Latin collisio, from collidere. Related to Collide.
1. An accident resulting from violent impact of a moving object.
2. An event in which two or more bodies come together; SYN. hit.
3. The act of colliding with something; SYN. crash, smash.

In medicine, circulatory failure marked by a sudden fall of blood pressure and resulting in pallor, sweating, fast (but weak) pulse, and sometimes complete collapse. Causes include disease, injury, and psychological trauma.
In shock, the blood pressure falls below that necessary to supply the tissues of the body, especially the brain. Treatment depends on the cause. Rest is needed, and, in the case of severe blood loss, restoration of the normal circulating volume.
1. Any violent blow or collision; SYN. concussion.
2. The violent interaction of individuals or groups entering into combat; SYN. impact.
3. An unpleasant or disappointing surprise; SYN. blow.
4. (Pathology) Bodily collapse or near collapse caused by inadequate oxygen delivery to the cells; caused by loss of circulating blood or cardiac arrest or obstruction or poor distribution of the blood flow.
5. A bushy thick mass (especially hair)
6. A pile of sheaves of grain set on end in a field to dry; stalks of Indian corn set up in a field.
7. An instance of agitation of the earth's crust; SYN. seismic disturbance. + prikaži više