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crookesite

American  
[krook-sahyt] / ˈkrʊk saɪt /

noun

  1. a rare mineral, selenide of copper, thallium, and silver, (Cu, Tl, Ag) 2 Se, occurring in steel-gray, compact masses.

Etymology

Origin of crookesite

1865–70; after Sir W. Crookes; see -ite 1

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.

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