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- noun Plural form of
Sorry, no etymologies found.
There's more on infrared reflectograms at the Art Institute of Chicago for those that are interested.
Under scrutiny at her studio here, the 15th-century masterwork depicting Madonna and Child is yielding its secrets to X-ray probes, ultraviolet scans, infrared reflectograms and molecular spectroscopy.
But infrared reflectograms revealed subtle differences between the underdrawing and the finished painting.
But Dr Penny thought it warranted a closer look - and infrared reflectograms revealed an underdrawing bearing all the hallmarks of