English-Thai Dictionary
ruthenium
N ธาตุ รูทีเนียม (สัญลักษณ์ ย่อ คือ Ru tad-te-niam
Webster's 1913 Dictionary
RUTHENIUM
Ru *the "ni *um, n. Etym: [NL. So named from the Ruthenians, a Little Russian people, as coming from Russia, the metal having been found in the Ural mountains.] (Chem. )
Defn: A rare element of the light platinum group, found associated with platinum ores, and isolated as a hard, brittle steel-gray metal which is very infusible. Symbol Ru. Atomic weight 1 3.5. Specific gravity 12.26. See Platinum metals, under Platinum.
New American Oxford Dictionary
ruthenium
ru the ni um |ro͞oˈTHēnēəm ruˈθiniəm | ▶noun the chemical element of atomic number 44, a hard silvery-white metal of the transition series. (Symbol: Ru ) ORIGIN mid 19th cent.: modern Latin, from medieval Latin Ruthenia, so named because it was discovered in ores from the Urals.
Oxford Dictionary
ruthenium
ruthenium |rʊˈθiːnɪəm | ▶noun [ mass noun ] the chemical element of atomic number 44, a hard silvery-white metal of the transition series. (Symbol: Ru ) ORIGIN mid 19th cent.: modern Latin, from medieval Latin Ruthenia (see Ruthenia ), so named because it was discovered in ores from the Urals.
Duden Dictionary
Ruthenium
Ru the ni um Substantiv, Neutrum Chemie , das |Ruth e nium |das Ruthenium; Genitiv: des Rutheniums nach Ruthenien, dem alten Namen der Ukraine mattgraues oder silberweiß glänzendes, sehr hartes, sprödes Edelmetall chemisches Element Ru
The Wordsmith Dictionary