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thulium

thu·lium

UK/ˈθjuːliəm/ US/ˈθuːliəm/ uncommon

noun

1.

a soft silvery metallic element of the rare earth group; isotope 170 emits X-rays and is used in small portable X-ray machines; it occurs in monazite and apatite and xenotime

Synonyms

Origin

From Thule (a poetic name for Scandinavia) + -ium.

Related words

Broader terms

Parts

WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.