Webster Dictionary(0.00 / 0 votes)Rate this definition: Sternum(noun) a plate of cartilage, or a series of bony or cartilaginous plates or segments, in the median line of the pectoral skeleton of most vertebrates above fishes; the breastbone.
Bowling refers to a series of sports or leisure activities in which a player rolls or throws a bowling ball towards a target. It is one of the major forms of throwing sports. In pin bowling variations, the target is usually to knock over pins at the end of a lane. In target variations, the aim is usually to get the ball as close to a mark as possible.
The game of bowling is pretty simple: you have ten pins arranged in a triangle, and you roll a ball down a slick alley towards them and try and knock as many down as possible. In most frames (see below about the tenth frame) you get two attempts per frame before the remaining pins are cleared.