Library / English Dictionary

    LANTHANUM

    Pronunciation (US): Play  (GB): Play

     I. (noun) 

    Sense 1

    Meaning:

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

    Synonyms:

    atomic number 57; La; lanthanum

    Classified under:

    Nouns denoting substances

    Hypernyms ("lanthanum" is a kind of...):

    metal; metallic element (any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.)

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