uranium 239


noun Chemistry.

the uranium isotope with a mass number 239. It is artificially produced by the neutron bombardment of uranium 238.

QUIZZES

TAKE THIS QUIZ IF A DAZZLING VOCABULARY IS YOUR DESIDERATUM!

Have the Words of the Day from October 19–25, 2020, made an indelible mark on your memory? Take the quiz to find out!
Question 1 of 7
What does “clement” mean?
Also called U-239, U 239.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020