from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. lanthanide

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. any element of the lanthanide series (atomic numbers 57 through 71)


Sorry, no etymologies found.


  • Also since it has only one lanthanoid/cerium, which itself is usually removed due to its potential tetravalency, lanthanum is basically easy to purify.

    CreationWiki - Recent changes [en]

  • Of course this is no promethium, but it could look like that: an otherwise typical lanthanoid, which however due to its radioactivity produces quite some heat and therefore on the surface quickly oxidizes to pink Pm2O3.

    CreationWiki - Recent changes [en]

  • There are supply worries because demand for rare earth metals is likely to increase between 10% and 20% annually from growing use of such lanthanoid elements as neodymium, used to make generators for wind turbines, and dysprosium, used to make parts for hybrid car motors.

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