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2 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 eikonogen
 影源

From: Webster's Revised Unabridged Dictionary (1913)

 Ei·kon·o·gen n.  Photog. & Chem. The sodium salt of a sulphonic acid of a naphthol, C10H5(OH)(NH2)SO3Na used as a developer.
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