Manograph
noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 An optical device for making pressure volume diagrams for high-speed engines, involving a light-tight box or camera having at one end a small convex mirror reflecting a beam of light onto the ground glass or photographic plate at the other end. The mirror is pivoted so that it can be moved so as to copy the motion of the engine piston on a smaller scale.
"In addition to the ordinary type of indicator, the Author describes the Hospitalier and the Schultze manographs, in which the diagram is produced photographically by reflecting a beam of light from a mirror attached to a diaphragm […]"
Example
More examples"In addition to the ordinary type of indicator, the Author describes the Hospitalier and the Schultze manographs, in which the diagram is produced photographically by reflecting a beam of light from a mirror attached to a diaphragm […]"
Etymology
From Ancient Greek μανός (manós, “thin, rare”) + -graph.
Related phrases
More for "manograph"
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.