atomic number 91

atomic number 91

noun
a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead [syn: protactinium
WordNet® 3.0, © 2006 by Princeton University.
Cite This Source
Explore Dictionary.com
Previous Definition: atomic number 90
Next Definition: atomic number 92
Words Near: atomic number 91
More from Thesaurus.com
Synonyms and Antonyms for atomic number 91
More from Reference.com
Search for articles containing atomic number 91
Dictionary.com Word FAQs

Dictionary.com presents 366 FAQs, incorporating some of the frequently asked questions from the past with newer queries.

Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature