yttrium

yttrium definition - medical

yt·tri·um (ĭtˈrē-əm)

noun Symbol Y
A silvery, ductile, rare-earth element used in various alloys. Atomic number 39.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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