thallium

名词 n.
中文释义
发音 thăl'ēəm

英文释义

名词 n.
  1. A metallic chemical element (symbol Tl) with atomic number 81: a gray post-transition metal that discolors when exposed to air. countable,uncountable
    — Environmental authorities in Lüeyang County, Shaanxi province, discovered excessive levels of thallium in two of the Jialing River’s upstream tributaries on Jan. 20, according to a statement Monday. The concentration of thallium that day was 170% higher than the standard for Qingni River, one of the upstream tributaries bordering Gansu province.
  2. A single atom of this element. countable,uncountable

词形变化

thalliums plural

词汇关系

衍生词
dithallium eka-thallium nonthallium organothallium radiothallium thallane thallic thalliferous thallious thallium-activated thallium glass thallium green thallium hydroxide thallium line thallium monofluoride thallium monoxide thallium oxide thallium sulfate thallium sulphate thallium sulfide thallium sulphide thallium trioxide thalloan thallous thall- thallo- trithallium
相关词
thallate crookesite hutchinsonite lorandite

词源

Coined based on Ancient Greek θαλλός (thallós, “green branch”) (after the color of the radiation spectra), + -ium.
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