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arsenolite

American  
[ahr-sen-l-ahyt] / ɑrˈsɛn lˌaɪt /

noun

  1. a mineral, arsenic trioxide, As 2 O 3 , occurring usually as a white incrustation on arsenical ores.

Etymology

Origin of arsenolite

First recorded in 1850–55; arseno- + -lite

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.