Spectro- Definition
spektrō, spektrə
prefix
Spectrum.
Spectrograph.
American Heritage
affix
Of radiant energy as exhibited in a spectrum.
Spectrogram.
Webster's New World
Of or by a spectroscope.
Spectroheliogram.
Webster's New World
Origin of Spectro-
From spectrum
From American Heritage Dictionary of the English Language, 5th Edition
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