point·er 
(pointər)
(pointər)n.
1. One that directs, indicates, or points, especially:
a. A long tapered stick or a laser beacon used to call attention to objects, as on a chart or blackboard.
b. A scale indicator on a watch, balance, or other measuring instrument.
2.
a. A dog of a breed developed in Europe to point game, having a smooth, short-haired coat that is often white with black or brownish markings.
b. A dog of any of various similar breeds.
3.
a. A piece of advice; a suggestion: Let me give you a few pointers on your golf swing.
b. A piece of indicative information: interest rates and other pointers in the economic forecast.
4. Computers A variable that holds the address of a core storage location.
5. Computers A symbol appearing on a display screen in a GUI that lets the user select a command by clicking with a pointing device or pressing the enter key when the pointer symbol is positioned on the appropriate button or icon.
6. Either of the two stars in the Big Dipper, Dubhe and Merak, that are aligned so that a line drawn between them extends north to Polaris, the north star.