nitrophenol

ni·tro·phe·nol

[nahy-truh-fee-nawl, -nol]
noun Chemistry.
1.
any compound derived from phenol by the replacement of one or more of its ring hydrogen atoms by the nitro group.
2.
any of three water-soluble, crystalline isomers of such a derivative, having the formula C 6 H 5 NO 3 , occurring in yellow (ortho-nitrophenol) pale-yellow (meta-nitrophenol) and yellowish (para-nitrophenol) solids, used chiefly as intermediates in organic synthesis and as indicators.

Origin:
1850–55; nitro- + phenol

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Nitrophenol is always a great word to know.
So is bezoar. Does it mean:
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
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