Pi is officially defined as the ratio of the circumference of a circle to its diameter.
The rest that extends beyond the circumference of the meat quickly melts down onto the surface of the flattop.
late 14c., from Latin circumferentia, neuter plural of circumferens, present participle of circumferre "to lead around, take around, carry around," from circum "around" (see circum-) + ferre "to carry" (see infer). A loan-translation of Greek periphereia "periphery, the line round a circular body," literally "a carrying round" (see periphery). Related: Circumferential.
The measure of the distance around a circle.