English Explanatory Dictionary

lanthanide

English dictionary entry

Meanings

noun
  1. Any of the 15 rare earth elements from lanthanum to lutetium in the periodic table; because their outermost orbitals are not filled, they have very similar chemistry; below them are the actinides.
  2. Any of the 14 rare earth elements from lanthanum to ytterbium (lutetium is excluded by some authors as it is a d-block rather than an f-block element).
  3. Any of the 14 rare earth elements from cerium to lutetium (lanthanum having been excluded because it was thought to be a d-block element in the past).

Pronunciation

lăn'thənīd /ˈlænθənaɪd/ LL-Q1860 (eng)-Vealhurl-lanthanide.wav

Word forms

lanthanide lanthanides

Etymology

From lanthanium + -ide.

Synonyms

lanthanate lanthanoid lanthanon rare-earth element

Related words

lanthanum cerium praseodymium neodymium promethium samarium europium gadolinium terbium dysprosium holmium erbium thulium ytterbium lutetium

Derived words

lanthanide contraction lanthanide series nonlanthanide radiolanthanide

Translations

Afrikaans: lantanied Chinese Mandarin: 鑭系元素 /镧系元素 Finnish: lantanidi Finnish: lantanoidi French: lanthanide German: Lanthanoid Greek: λανθανίδιο Hungarian: lantanoida Icelandic: lanþaníð Icelandic: lantaníð Italian: lantanide Japanese: ランタノイド Romanian: lantanidă Russian: лантано́ид Serbo-Croatian: lantanoid Spanish: lantánido Turkish: lantanit
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