Of or pertaining to spectrography or spectrographs(adjective)
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Use "spectrographic" in a sentence
""spectrographic" method were begun by Dr. Vogel and his able assistant,"
"A peephole made of processed sapphire will allow sensors to take spectrographic readings."
"So, after years of looking, I finally scored a bottle of Dogfish Head Chateau Jiahu, yet another Dogfish Head triumph of experimental, molecular, and forensic archaeology and spectrographic analysis."