Definitions for

Overview of noun thorium

The noun thorium has 1 senses? (no senses from tagged texts)
1. thorium, Th, atomic number 90

(a soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands) © 2001-2013, Demand Media, all rights reserved. The database is based on Word Net a lexical database for the English language. see disclaimer
Classroom | Privacy Policy | Terms | Ad Choices