bitmap Syllabification: (bit·map)Pronunciation: /ˈbitˌmap/ ComputingDefinition of bitmap noun a representation in which each item corresponds to one or more bits of information, especially the information used to control the display of a computer screen. verb (bitmaps, bitmapping, bitmapped) [with object] represent (an item) as a bitmap. bitmap in other Oxford dictionaries Definition of bitmap in the British & World English dictionary