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Word |
Description |
Lanthanide |
A series of metallic chemical elements ranging with atomic numbers 57 to 71, which includes neodymium (Nd). These fifteen chemicals (plus scandium and yttrium) are often collectively referred to as "rare earth" elements. |
Lodestone |
A naturally magnetized piece of the mineral Magnetite. Its name is derived from the Middle English term meaning "the leading stone", owing to its important role in early navigational compasses. |