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cerium metal

American  

noun

Chemistry.

  1. any of a subgroup of rare-earth metals, of which the terbium and yttrium metals comprise the other two subgroups.

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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