THORIUMS
THORIUM
Tho"ri*um, n. Etym: [NL. See Thorite.] (Chem.)
Definition: 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’s Unabridged Dictionary 1913 Edition
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25 November 2024
ONCHOCERCIASIS
(noun) infestation with slender threadlike roundworms (filaria) deposited under the skin by the bite of black fleas; when the eyes are involved it can result in blindness; common in Africa and tropical America
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