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bead test

American  

noun

  1. a laboratory test used in the identification of certain metals or metal constituents, in which a bead covered with the material is heated in a flame and cooled to observe its properties.

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.