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lanthanum

lant·ha·num

UK/ˈlænθənəm/ US/ˈlænθʌnʌm/ uncommon

noun

1.

a white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth

Synonyms

Origin

From Ancient Greek λανθάνω (lanthánō, “to escape notice”) + -um (“a chemical element”), because it had gone long undetected in mineral ores.

Phrases

  • lanthanum carbonate
  • lanthanum chloride
  • lanthanum glass
  • lanthanum nitrate
  • lanthanum oxide
  • lanthanum oxybromide
  • lanthanum sesquioxide
  • rare earth

Related words

Broader terms

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.