reflectogram
/rɪˈflɛktəɡram/(also reflectogramme)
noun
1A record produced by a reflectometer; a graphical representation of the manner in which sound or ultrasound, light, or other radiation is reflected from a surface.
- Reflectograms are typically used for characterizing types of coal, alloys, and other materials by their reflectance..
2An image produced by reflectography, especially to reveal the drawing lines beneath a painting. Usually in infrared reflectogram.
Origin
1920s; earliest use found in Mineralogical Abstracts. From reflect + -o- + -gram, originally after German Reflektogramm.
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