Related formsthor·ic [thawr-ik, thor-] /ˈθɔr ɪk, ˈθɒr-/, adjective
Examples from the Web for thorium
He was also the person who first identified silicon, selenium, thorium, and serium.
But thorium mostly gives off the kind of radiation known as alpha particles.
The manufacturers give away a pound of cerium salts with every purchase of a hundred pounds of thorium salts.Creative Chemistry|Edwin E. Slosson
Radium and thorium, but not uranium, give rise to radio-active gases which have been called emanations.Darwin and Modern Science|A.C. Seward and Others
It will be seen that the ray of greatest range is that proceeding from thorium C2, which reaches a distance of 8.6 cms.The Birth-Time of the World and Other Scientific Essays|J. (John) Joly
They would be compared with a chunk of thorium of the same size.