acetophenone

a·ce·to·phe·none

[uh-see-toh-fuh-nohn, as-i-toh-]
noun Chemistry.
a colorless liquid, C 8 H 8 O, having a sweet odor: used chiefly as a scent in the manufacture of perfume.
Also called acetylbenzene, hypnone, phenyl methyl ketone.


Origin:
1870–75; aceto- + phen- + -one

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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Encyclopedia Britannica
Encyclopedia

acetophenone

an organic compound used as an ingredient in perfumes and as a chemical intermediate in the manufacture of pharmaceuticals, resins, flavouring agents, and a form of tear gas. It also has been used as a drug to induce sleep.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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00:10
Acetophenone is always a great word to know.
So is interrobang. Does it mean:
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
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