thoria
Americannoun
noun
Etymology
Origin of thoria
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
It has been found that a mantle in which thoria is used alone is a poor light-source, but that when a small amount of ceria is added the mantle glows brilliantly.
From Artificial Light Its Influence upon Civilization by Matthew Luckiesh
His first mantles were unsatisfactory, but they were improved in 1886 by the use of thoria, an oxide of thorium, in conjunction with other rare-earth oxides.
From Artificial Light Its Influence upon Civilization by Matthew Luckiesh
By experiment it was determined that the best proportions for the rare-earth content are one part of ceria and ninety-nine parts of thoria.
From Artificial Light Its Influence upon Civilization by Matthew Luckiesh
Much the best practical source of helium is thorianite, a mineral imported from Ceylon for the manufacture of thoria.
From Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" by Various
Other authorities hold that mantles for acetylene, should contain other rare earths besides the thoria and ceria of which the coal-gas mantles almost wholly consist.
From Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power by F. H. (Frank Henley) Leeds
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