What does bitmapped mean?
"Bitmapped" is a computing term describing images, graphics, or fonts represented as a bitmap — a rectangular grid of picture elements, or pixels, each holding color or intensity values. When a photograph is scanned or displayed on a screen, it is typically rendered as bitmapped data, meaning its appearance is fixed at a specific resolution: enlarging a bitmapped image reveals the individual pixels as visible blocks. This distinguishes it from vector graphics, which store shapes mathematically and scale cleanly to any size. The word derives from "bitmap," a blend of "bit" (binary digit) and "map," reflecting the way each dot's value is mapped into memory. Commonly appearing in phrases like "bitmapped image" and "bitmapped font," the term is standard technical vocabulary, familiar from discussions of file formats, printing, screen displays, and early computer typography, where fonts were drawn as fixed pixel patterns before scalable outline type became universal.
adjectiveRepresented, stored, or displayed as a bitmap — that is, as an array of individual pixels or dots, each corresponding to a point on a grid. Typically used of digital images or fonts whose appearance depends entirely on such a fixed pixel pattern.
- (of an image or graphic) stored or represented as a bitmap, i.e., a grid of individually addressed pixels.
- (of a font) defined as a fixed set of pixel patterns rather than scalable outlines.
"The museum archived the scanned posters as high-resolution bitmapped files."
"Early Macintosh computers rendered text using small bitmapped fonts that looked jagged when enlarged."
"The designer converted the logo from vector art to a bitmapped format for use on the website."
Every photo you've ever taken lives as a bitmapped grid of colored dots — zoom in far enough and even the Mona Lisa dissolves into squares.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of bitmapped
The term combines "bit," short for binary digit, with "map," reflecting the way pixel values are mapped onto memory locations. "Bit" was coined by mathematician John Tukey and popularized by Claude Shannon in the 1940s, while "map" traces back through Old English to Latin "mappa," meaning cloth or napkin. The compound "bitmap" arose with early computer graphics in the mid-20th century, and "bitmapped" emerged naturally as its adjectival form during the personal-computing era of the 1970s and 1980s.
Related word forms
How bitmapped is actually used
Technical register: used chiefly in computing contexts. Often hyphenated as 'bit-mapped', especially in older British usage. It carries no inherent negative connotation, though it contrasts with 'vector' formats, which are resolution-independent.
Easily confused with bitmapped
'Pixelated' describes an image that looks blocky because it is enlarged or low-resolution, while 'bitmapped' neutrally describes how the image data itself is stored as a grid of pixels.