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From The Collaborative International Dictionary of English v.0.48:
Nosophen \Nos"o*phen\, n. [Nose + phenol; orig. used for affections of the nose.] (Pharm.) An iodine compound obtained as a yellowish gray, odorless, tasteless powder by the action of iodine on phenolphthalein. [Webster 1913 Suppl.]