Daily Almanac for
May 24, 2012
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Dictionary


ar•se•nic



Pronunciation: (
—n.är'su-nik, ärs'nik;
—adj.är-sen'ik), [key]
—n.
1. a grayish-white element having a metallic luster, vaporizing when heated, and forming poisonous compounds. Symbol: As; at. wt.: 74.92; at. no.: 33.
2. See arsenic trioxide.
3. a mineral, the native element, occurring in white or gray masses.

—adj.
of or containing arsenic, esp. in the pentavalent state.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

arsenatearsenic acid
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