paranitrophenol

par·a-ni·tro·phe·nol

[par-uh-nahy-truh-fee-nawl, -nol]
noun
See under nitrophenol ( def 2 ).
Dictionary.com Unabridged

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

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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00:10
Paranitrophenol is always a great word to know.
So is doohickey. Does it mean:
a gadget; dingus; thingumbob.
a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.
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