- thoria
- noun Etymology: New Latin, from thorium + -a Date: circa 1841 a powdery white oxide of thorium ThO2 used especially as a catalyst and in crucibles and refractories and optical glass
New Collegiate Dictionary. 2001.
thoria
Look at other dictionaries:
Thoria — Tho ri*a, n. [NL. See {Thorite}.] (Chem.) A rare white earthy substance, consisting of the oxide of thorium; formerly called also {thorina}. [1913 Webster] … The Collaborative International Dictionary of English
thoria — [thôr′ē ə] n. [ModL < Swed Thorjord, lit., Thor earth (so named by BERZELIUS Baron Jöns Jakob): see THORIUM] a white, powdery form of thorium dioxide, ThO2, used esp. in gas mantles and in making refractory crucibles … English World dictionary
Thorĭa lex — Thorĭa lex, s.u. Agrariae leges e) … Pierer's Universal-Lexikon
THORIA Lex — vide Thorius … Hofmann J. Lexicon universale
thoria — /thawr ee euh, thohr /, n. Chem. a white, heavy, water insoluble powder, ThO2, used chiefly in incandescent mantles, as the Welsbach gas mantle. Also called thorium oxide, thorium dioxide. [1835 45; THORI(UM) + A4] * * * … Universalium
thoria — [ θɔ:rɪə] noun Chemistry thorium dioxide, a white refractory solid used in making gas mantles and other materials for high temperature applications. Origin C19: from thorium … English new terms dictionary
thoria — tho·ria … English syllables
thoria — tho•ri•a [[t]ˈθɔr i ə, ˈθoʊr [/t]] n. chem. thorium dioxide, a white, heavy, water insoluble powder, ThO2, used chiefly in incandescent mantles • Etymology: 1835–45; thori (um) + a III … From formal English to slang
thoria — /ˈθɔriə/ (say thawreeuh) noun an oxide of thorium, ThO2, a white powder, used in making gas mantles. {thori(um) + a; modelled on magnesia} …
thoria — n. the oxide of thorium … Useful english dictionary
