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alunogen

American  
[uh-loo-nuh-juhn] / əˈlu nə dʒən /

noun

  1. a mineral, hydrous sulfate of aluminum, Al 2 (SO4 ) 3 ⋅18H 2 O, occurring as a white, fibrous crust on quarry or mine walls.

Etymology

Origin of alunogen

1865–70; < French alun ( see alunite) + -o- + -gen

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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