English-Thai Dictionary
thorium
N ธาตุ โลหะ กัมมันตรังสี มี สีเทา เข้ม มี สัญลักษณ์ Th tad-lo-ha-kam-man-ta-rang-se
Webster's 1913 Dictionary
THORIUM
Tho "ri *um, n. Etym: [NL. See Thorite. ] (Chem. )
Defn: 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. .
New American Oxford Dictionary
thorium
tho ri um |ˈTHôrēəm ˈθɔriəm | ▶noun the chemical element of atomic number 90, a white radioactive metal of the actinide series. (Symbol: Th ) ORIGIN mid 19th cent.: named after the god Thor .
Oxford Dictionary
thorium
thorium |ˈθɔːrɪəm | ▶noun [ mass noun ] the chemical element of atomic number 90, a white radioactive metal of the actinide series. (Symbol: Th ) ORIGIN mid 19th cent.: named after the god Thor .
Duden Dictionary
Thorium
Tho ri um Substantiv, Neutrum , das |Th o rium |nach dem Gott Thor radioaktives, weiches, silberglänzendes Schwermetall chemisches Element Th
The Wordsmith Dictionary