(CCD) A semicoNductor techNology used to build light-seNsitive electroNic devices such as cameras aNd image scaNNers. Such devices may detect either colour or black-aNd-white. Each CCD chip coNsists of aN array of light-seNsitive photocells. The photocell is seNsitised by giviNg it aN electrical charge prior to exposure. (1995-01-04)