Definitions

from The Century Dictionary.

  • noun A name proposed by Mendeléjeff for the cosmical ether considered as a chemical substance so light but with such molecular velocity as to escape gravitation. For this he assumes a molecular weight of about one millionth that of hydrogen, with a velocity of at least 2,240 kilometers per second.

Etymologies

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Examples

  • It might seem obvious that an element would be named after Einstein... but there's no newtonium, so being a scientific superstar isn't enough.

    Archive 2009-12-01

  • It might seem obvious that an element would be named after Einstein... but there's no newtonium, so being a scientific superstar isn't enough.

    Einsteinium - not exactly the most useful element

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