English-Thai Dictionary

selenium

N ธาตุ โลหะ 

 

Webster's 1828 Dictionary

SELENIUM

n.[supra. ] A new elementary body or substance, extracted from the pyrite of Fahlun in Sweden. It is of a gray dark brown color, with a brilliant metallic luster, and slighty translucent. It is doubted whether it ought to be classified with the metals.

 

Webster's 1913 Dictionary

SELENIUM

Se *le "ni *um, n. Etym: [NL. , from Gr. tellurium (from L. tellus the earth ), being, as it were, a companion to it. ] (Chem. )

 

Defn: A nonmetallic element of the sulphur group, and analogous to sulphur in its compounds. It is found in small quantities with sulphur and some sulphur ores, and obtained in the free state as a dark reddish powder or crystalline mass, or as a dark metallic- looking substance. It exhibits under the action of light a remarkable variation in electric conductivity, and is used in certain electric apparatus. Symbol Se. Atomic weight 78.9.

 

New American Oxford Dictionary

selenium

se le ni um |səˈlēnēəm səˈliniəm | ▶noun the chemical element of atomic number 34, a gray crystalline nonmetal with semiconducting properties. (Symbol: Se ) DERIVATIVES sel e nide |ˈseləˌnīd, -nid |noun ORIGIN early 19th cent.: modern Latin, from Greek selēnē ‘moon. ’

 

selenium cell

se le ni um cell ▶noun a photoelectric device containing a piece of selenium.

 

Oxford Dictionary

selenium

selenium |sɪˈliːnɪəm | ▶noun [ mass noun ] the chemical element of atomic number 34, a grey crystalline non-metal with semiconducting properties. (Symbol: Se ) DERIVATIVES selenide noun ORIGIN early 19th cent.: modern Latin, from Greek selēnē ‘moon ’.

 

selenium cell

sel ¦en |ium cell ▶noun a photoelectric device containing a piece of selenium.

 

Sanseido Wisdom Dictionary

selenium

se le ni um /səlíːniəm /名詞 U 〘化 〙セレン 〘非金属元素; 記号Se 〙.