Definitions
from The Century Dictionary.
- noun In chem., one of the rare earths, lanthanum oxid.
Etymologies
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Examples
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In 1839, Mosander extracted a new earth lanthana from a impure cerium nitrate and recognized the new element.
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In 1839, Mosander extracted a new earth lanthana from a impure cerium nitrate and recognized the new element.
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