HyperDic: lanthanum

English > 1 sense of the word lanthanum:
NOUNsubstancelanthanum, La, atomic number 57a white soft metallic element that tarnishes readily
lanthanum > pronunciation
Soundslae'nthahnahm
Rhymesabolitionism ... zirconium: 557 rhymes with ahm...
English > lanthanum: 1 sense > noun 1, substance
MeaningA white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth.
SynonymsLa, atomic number 57
Broadermetallic element, metalAny of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
Spanishlantano, número atómico 57
Catalanlantà, lantani, número atòmic 57

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