thorium, Th, atomic number
(noun) a soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands
Source: WordNet® 3.1
thorium (uncountable)
A chemical element (symbol Th) with atomic number 90: a weakly radioactive, malleable, moderately hard silvery metal that tarnishes black when exposed to air.
• thorinum (former alternative form; obsolete)
Source: Wiktionary
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
25 December 2024
(adjective) having or exhibiting a single clearly defined meaning; “As a horror, apartheid...is absolutely unambiguous”- Mario Vargas Llosa
The world’s most expensive coffee costs more than US$700 per kilogram. Asian palm civet – a cat-like creature in Indonesia, eats fruits, including select coffee cherries. It excretes partially digested seeds that produce a smooth, less acidic brew of coffee called kopi luwak.
