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tho
thole (1)
thole (2)
tholepin
tholos
Thomism
Thompson
Thompson submachine gun
Thomson effect
Thomson’s gazelle
-thon
thong
Thor
thoracentesis
thoraces
thoracic
thoracic duct
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thorite
tho·rite [ tháw rt ]


noun 
Definition:
 
radioactive mineral: a rare brown, black, or yellow radioactive thorium silicate mineral. Use: source of thorium.
[Mid-19th century. <Thor]
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