Definition of yttrium
: a metallic element usually included in the rare-earth group that occurs usually with other rare earth elements in minerals and is used especially in phosphors, YAG lasers, and superalloys — see element table
Recent Examples of yttrium from the Web
The iPhone contains a chorus of eight rare earth elements: neodymium, praseodymium, dysprosium, terbium, gadolinium, europium, lanthanum, and yttrium.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'yttrium'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of yttrium
New Latin, from yttria yttrium oxide (Y2O3), irregular from Ytterby, town in southern Sweden
First Known Use: 1814See Words from the same year
Learn More about yttrium
Britannica.com: Encyclopedia article about yttrium
Seen and Heard
What made you want to look up yttrium? Please tell us where you read or heard it (including the quote, if possible).