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.
If the square mile is divided into quarters, each quarter has a side length of 1 â 2 mile (880 yards) and is 1 â 4 square mile in area, or 160 acres. These subunits would typically then again be divided into quarters, with each side being 1 â 4 mile long, and being 1 â 16 of a square mile in area, or 40 acres.