Glossary Term Definition
A letterform or image defined as a pattern of pixels or dots mapped on a rectangular grid, as opposed to an outline-based format.
Definition
A letterform or image defined as a pattern of pixels or dots mapped on a rectangular grid. Bitmap fonts were common in early digital typography but have largely been supplanted by outline formats such as PostScript and TrueType, which can be scaled freely.
Source
No access — Robert Bringhurst — p. 322:
A letterform or image defined as a pattern of pixels or dots mapped on a rectangular grid.