English-Thai Dictionary
actinium
N ธาต กัมมันตรังสี ทีมี สัญลักษณ์ Ac thad-kam-man-ta-rang-si-ti-mee-san-ya-lak
Webster's 1913 Dictionary
ACTINIUM
Ac *tin "i *um, n. Etym: [Gr. (Chem. )
Defn: A supposed metal, said by Phipson to be contained in commercial zinc; -- so called because certain of its compounds are darkened by exposure to light.
New American Oxford Dictionary
actinium
ac tin i um |akˈtinēəm ækˈtɪniəm | ▶noun the chemical element of atomic number 89, a radioactive metallic element of the actinide series. It is rare in nature, occurring as an impurity in uranium ores. (Symbol: Ac ) ORIGIN early 20th cent.: from Greek aktis, aktin- ‘ray ’ + -ium .
Oxford Dictionary
actinium
actinium |akˈtɪnɪəm | ▶noun [ mass noun ] the chemical element of atomic number 89, a radioactive metallic element of the actinide series. It is rare in nature, occurring as an impurity in uranium ores. (Symbol: Ac ) ORIGIN early 20th cent.: from Greek aktis, aktin- ‘ray ’ + -ium .
Duden Dictionary
Actinium
Ac ti ni um Substantiv, Neutrum , das |Act i nium |zu griechisch aktís (Genitiv: aktĩnos ) = Strahl radioaktives Metall chemisches Element Ac
French Dictionary
actinium
actinium n. m. nom masculin Symbole Ac (s ’écrit sans point ). Corps radioactif. : Des actiniums.
The Wordsmith Dictionary