surgical operation, surgical procedure, surgical process, surgery, operation - a medical procedure involving an incision with instruments; performed to repair damage or arrest disease in a living body; they will schedule the operation as soon as an operating room is available; he died while undergoing surgery.
A quarter mile is, by definition, a fourth of a mile. It is 1,320 feet or 402.3 meters. On a standard-sized Olympic track, it is a little more than a single lap.
There are 5280 feet in a mile, because one mile is defined as 8 furlongs and 1 furlong is 660 feet, that makes 8 * 660 ft = 5280 feet in a mile. For example, to find out how many feet there are in a mile and a half, multiply the mile value by the conversion factor, that makes 1.5 mile * 5280 = 7920 feet in a mile and a half. Mile is an imperial and US customary length unit and equals to 5280 feet, 1760 yards, 63360 inches, 1.60934 kilometers and 1609.34 meters.