depinisyon kahulugan
Browse Dictionary Definitions  A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
doc Definition of thorium
    English to English
    noun
  • 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
  • source: WordNet 3.0
  • A metallic element found in certain rare minerals, as thorite, pyrochlore, monazite, etc., and isolated as an infusible gray metallic powder which burns in the air and forms thoria; -- formerly called also thorinum. Symbol Th. Atomic weight 232.0.
  • source: Webster 1913
Nearby Word