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eradicate
erase
eraser
Erastian
Erastianism
erasure
Erato
Eratosthenes
erbium
ere
Erebus, Mount
erect
erecter
erectile
erectile dysfunction
erecting prism
erection
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erbium
er·bi·um [ úrbee əm ]


noun 
Definition:
 
metallic chemical element: a soft silvery metallic element of the rare-earth group. Source: monazite, bastnaesite. Use: alloys, pigment.
Symbol  Er
[Mid-19th century. After Ytterby, town in Sweden]
Encarta® World English Dictionary [North American Edition] © & (P)2007 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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