Skip to Content


Pronunciation: po-lo'ne-um

Definition: A radioactive element, atomic no. 84, isolated from pitchblende; the longest-lived isotope is 209Po (half-life 102 years); 210Po is radium F (half-life 138.38 days), the only readily accessible isotope.

[L. fr. Polonia, Poland, native country of Mme. M.S. Curie who with her husband, P. Curie, discovered the substance]

Disclaimer: This site is designed to offer information for general educational purposes only. The health information furnished on this site and the interactive responses are not intended to be professional advice and are not intended to replace personal consultation with a qualified physician, pharmacist, or other healthcare professional. You must always seek the advice of a professional for questions related to a disease, disease symptoms, and appropriate therapeutic treatments.
© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.