thoria

 : 
Noun
 : 
tho=ri=a

CIDE DICTIONARY

thorian. [NL. See Thorite.].
     A rare white earthy substance, consisting of the oxide of thorium; -- formerly called also thorina.  [1913 Webster]

OXFORD DICTIONARY

thoria, n. the oxide of thorium.


For further exploring for "thoria" in Webster Dictionary Online


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