1. to restore or be restored to health. 2. (Medicine) (intr; often foll by over or up) (of a wound, burn, etc) to repair by natural processes, as by scar formation. 3. (Medicine) (tr) a. to treat (a wound, etc) by assisting in its natural repair. b. to cure (a disease or disorder)
What's the difference between a flood and a flash flood? Flash floods are distinguished from a regular flood by the length of time it takes for the flood to occur. Under six hours, the flood is referred to as a flash flood. Some can occur within minutes. Areas will not always be able receive a warning that these floods are coming and people can be caught off-guard.
Therefore, when a river floods it does so quite slowly as it takes time for the rain to percolate through the ground and into the rivers and out to sea â allowing time for some warning. With flash flooding there is often very little time between the rain falling and flash flooding occurring.