Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

fermium

play
noun fer·mi·um \ˈfer-mē-əm, ˈfər-\

Definition of fermium

  1. :  a radioactive metallic element produced artificially (as by bombardment of plutonium with neutrons) — see element table



Origin of fermium

Enrico Fermi


First Known Use: 1955


Medical Dictionary

fermium

play play
noun fer·mi·um \ˈfer-mē-əm, ˈfər-\

Medical Definition of fermium

  1. :  a radioactive metallic element artificially produced (as by bombardment of plutonium with neutrons)—symbol Fm; see element table




Learn More about fermium


Seen and Heard

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

WORD OF THE DAY

February 13, 2016

a trying or distressing experience

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image33683556

How much does a batman (the Turkish unit of measurement) weigh?

196.5 pounds 100 pounds 16.96 pounds 2.2 pounds
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ