radioiron

noun

ra·​dio·​iron -ˈī(-ə)rn How to pronounce radioiron (audio)
: radioactive iron
especially : a heavy isotope having the mass number 59 that is produced in nuclear reactors or cyclotrons and is used in biochemical tracer studies

Dictionary Entries Near radioiron

Cite this Entry

“Radioiron.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/radioiron. Accessed 22 Mar. 2023.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!


Which Came First?

  • baby chick with a brown egg
  • hot take or cold shoulder?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Solve today's spelling word game by finding as many words as you can with using just 7 letters. Longer words score more points.

Can you make 12 words with 7 letters?

PLAY