Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. An organic compound, diphenylaminechlorarsine, used as a riot-control agent.

from The Century Dictionary and Cyclopedia

  • n. A name given to a greenish-black mica found in Derby, Vermont; a variety of muscovite or common mica.

Etymologies

Named after Roger Adams, an American organic chemist. (Wiktionary)

Examples

  • After a cavalry charge, infantry, with fixed bayonets and adamsite gas, a riot control agent, entered the Bonus Army camps and successfully evicted veterans, families and camp followers.

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