neptunium series

noun

a radioactive series that starts with plutonium-241 and ends with bismuth-209. Neptunium-237 is the longest-lived member of the series. The series does not occur in nature

QUIZZES

QUIZ TIME: TEST YOUR MEMORY OF THE MAY 2020 WORDS OF THE DAY

Let the aeolian gusts transport you back to these popular Words of the Day from the month of May. How many do you remember?
Question 1 of 10
Which of the following words means “to travel or journey, especially to walk on foot”?
hightail
peregrinate
perpetrate
TAKE THE QUIZ TO FIND OUT

Words nearby neptunium series

nepos, nepotism, neptune, neptunian, neptunium, neptunium series, ner tamid, neral, nerc, nerd, nerdic
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012