English-Thai Dictionary

rubidium

N ธาตุ โลหะช นิดหนึ่ง ที่ คล้าย โพแทสเซียม 

 

Webster's 1913 Dictionary

RUBIDIUM

Ru *bid "i *um, n. Etym: [NL. , fr. L. rubidus red, fr. rubere to be red. So called from two dark red spectroscopic lines by means of which it was discovered in the lepidolite from Rozena, Moravia. See Rubicund. ] (Chem. )

 

Defn: A rare metallic element. It occurs quite widely, but in small quantities, and always combined. It is isolated as a soft yellowish white metal, analogous to potassium in most of its properties. Symbol Rb. Atomic weight, 85.2.

 

New American Oxford Dictionary

rubidium

ru bid i um |ro͞oˈbidēəm ruˈbɪdiəm | ▶noun the chemical element of atomic number 37, a rare soft silvery reactive metal of the alkali metal group. (Symbol: Rb ) ORIGIN mid 19th cent.: modern Latin, from Latin rubidus ‘red ’ (with reference to its spectral lines ).

 

rubidium–strontium dating

ru bid i um –stron ti um dat ing ▶noun Geology a method of dating rocks from the relative proportions of rubidium-87 and its decay product, strontium-87.

 

Oxford Dictionary

rubidium

rubidium |rʊˈbɪdɪəm | ▶noun [ mass noun ] the chemical element of atomic number 37, a rare soft silvery reactive metal of the alkali metal group. (Symbol: Rb ) ORIGIN mid 19th cent.: modern Latin, from Latin rubidus ‘red ’ (with reference to its spectral lines ).

 

rubidium–strontium dating

rubidium –strontium dat ¦ing ▶noun [ mass noun ] Geology a method of dating rocks from the relative proportions of rubidium-87 and its decay product, strontium-87.

 

Duden Dictionary

Rubidium

Ru bi di um Substantiv, Neutrum Chemie , das |Rub i dium |lateinisch rubidus = dunkelrot; das Metall hat zwei dunkelrote Spektrallinien sehr weiches, silbrig glänzendes Alkalimetall chemisches Element Rb

 

Sanseido Wisdom Dictionary

rubidium

ru bid i um /rubɪ́diəm /名詞 U 〘化 〙ルビジウム 〘金属元素; ｟記号 ｠Rb 〙.