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Definition of: lanthanide series

(lanthə·nīd) Physics
The group of rare-earth elements beginning with lanthanum and ending with lutetium, atomic numbers 57 to 71, characterized by closely related properties and great difficulty of separation. [<LANTHAN(UM) + -ide, var. of -ID2]

Phrases starting with the letter: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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