toner
Definition:
Toner is a dry ink powder that carries an electric charge. It is often used in laser printers, fax machines, and copiers. Paper is electronically charged to attract the toner to specific areas on the paper in order to create characters and words. Toner cartridges are typically more expensive than ink cartridges, but do not need to be replaced as often.
Here's a word you may not know...
optical zoom
Optical zoom refers to using your digital camera to zoom in on, or magnify, your subject. The amount you are allowed to zoom is usually indicated by a number followed by an x such as "3x optical zoom" which in this case means the ratio of the longest to shortest focal length on the digital camera lens is 3:1. Optical zooming uses the digital camera's lens to perform the zoom which produces a far superior picture than optical zoom's counterpart, digital zoom.