thorium


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thorium

 [thor´e-um]
a chemical element, atomic number 90, atomic weight 232.038, symbol Th. (See Appendix 6.)

tho·ri·um (Th),

(thō'rē-ŭm),
A radioactive metallic element; atomic no. 90, atomic wt. 232.0381. 232Th, the only naturally occurring nuclide, with a half-life of 14 × 109 years, is used in colloidal form in electron microscopy as a stain for acid mucopolysaccharides.
[Thor, Norse god of thunder]

thorium

/tho·ri·um/ (thor´e-um) chemical element, at. no. 90, symbol Th.

thorium (Th)

[thôr′ē·əm]
Etymology: ONorse, Thor, god of thunder
a heavy grayish radioactive metallic element. Its atomic number is 90; its atomic mass (weight) is 232.04. Thorium is used in nuclear medicine and in radiation therapy.

tho·ri·um

(Th) (thōr'ē-ŭm)
A radioactive metallic element; atomic no. 90, atomic wt. 232.0381. 232Th, the only naturally occurring nuclide, with a half-life of 14 × 109 years, is used in colloidal form in electron microscopy as a stain for acid mucopolysaccharides.
[Thor, Norse god of thunder]

thorium

a chemical element, atomic number 90, atomic weight 232.038, symbol Th. See Table 6. Formerly used as a radiographic contrast medium.
References in periodicals archive ?
Company's business and sales activities will be boosted by gaining an insight into the uranium and thorium market.
The results showed that using adsorbent material, the percent removal of thorium was decreased when the initial concentration ([C.
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Now, Thorium which retorted that the independent directors had considered the offer fair and reasonable, unanimously recommending it to shareholders, has bitten the bullet.
Thorium urged investors to accept its 140p-per-shareoffer, saying this price was unlikely to be achieved in the market soon.
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Wind cleaner than nuclear WHAT Professor Bob Cywinski doesn't tell readers in his attack on Valley Wind and onshore wind farms (Too High A Price, April 8) is that he is a leading advocate of nuclear energy and, more particularly, Thorium reactors as a solution to climate problems.
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