einsteinium

noun ein·stei·ni·um \īn-ˈstī-nē-əm\

Definition of EINSTEINIUM

: a radioactive element produced artificially — see element table

See einsteinium defined for kids

New Latin, from Albert Einstein

First Known Use: 1955

Medical Dictionary

noun ein·stei·ni·um \īn-ˈstī-nē-əm\

: a radioactive element produced artificially—symbol Es; see element table

Next Word in the Dictionary: Einstein law of photochemical equivalencePrevious Word in the Dictionary: Einstein equationAll Words Near: einsteinium

What made you want to look up einsteinium? Please tell us where you read or heard it (including the quote, if possible).

Put-downs with flair

How to use a word that (literally) drives some people nuts.

Test your vocab with our fun, fast game

Ailurophobia, and 9 other unusual fears