intransitive verb to move or flow continuously along a closed path or system.Blood circulates through the arteries and veins of the body.Water circulates through the heating system. transitive verb to cause to…

noun a forecast of the anticipated course of a disease, esp. of the likelihood of recovery.It is a serious disease and the prognosis is usually gloomy. See the full entry

transitive verb to get over or past; overcome; conquer.These were difficult problems, but with effort, we surmounted them. See the full entry

noun a sudden or unexpected death.Although many were injured in the train wreck, there were no fatalities. See the full entry

transitive verb to formally change by rephrasing, or to add to or subtract from (a legislative bill, a contract, a treaty, or the like).The bill will be amended so that it will…