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praseodymium

N ชื่อ ธาตุ โลหะช นิดหนึ่ง 

 

Webster's 1913 Dictionary

PRASEODYMIUM

Pra `se *o *dym "i *um, n. Etym: [Praseo- + didymium. ] (Chem. )

 

Defn: An elementary substance, one of the constituents of didymium; - - so called from the green color of its salts. Symbol Ps. Atomic weight 143.6.

 

New American Oxford Dictionary

praseodymium

pra se o dym i um |ˌprāzēōˈdimēəm ˌpreɪzioʊˈdɪmiəm | ▶noun the chemical element of atomic number 59, a soft silvery-white metal of the lanthanide series. (Symbol: Pr ) ORIGIN late 19th cent.: modern Latin, from German Praseodym, from Greek prasios ‘leek-green ’ (because of its green salts ) + German Didym ‘didymium. ’

 

Oxford Dictionary

praseodymium

praseodymium |ˌpreɪzɪə (ʊ )ˈdɪmɪəm | ▶noun [ mass noun ] the chemical element of atomic number 59, a soft silvery-white metal of the lanthanide series. (Symbol: Pr ) ORIGIN late 19th cent.: modern Latin, from German Praseodym, from Greek prasios ‘leek-green ’ (because of its green salts ) + German Didym ‘didymium ’.