plutonium

N พลูโทเนียม  ธาตุ กัมต ภาพ รังสีช นิดหนึ่ง  pru-to-niam

plutonium

plu to ni um |plo͞oˈtōnēəm pluˈtoʊniəm | ▶noun the chemical element of atomic number 94, a dense silvery radioactive metal of the actinide series, used as a fuel in nuclear reactors and as an explosive in nuclear fission weapons. Plutonium only occurs in trace amounts in nature but is manufactured in nuclear reactors from uranium-238. (Symbol: Pu ) ORIGIN late 18th cent.: from Greek Ploutōn ‘Pluto, ’ on the pattern of neptunium, being the next planet beyond Neptune.

plutonium

plu ¦to |nium |pluːˈtəʊnɪəm | ▶noun [ mass noun ] the chemical element of atomic number 94, a dense silvery radioactive metal of the actinide series, used as a fuel in nuclear reactors and as an explosive in nuclear fission weapons. Plutonium only occurs in trace amounts in nature but is manufactured in nuclear reactors from uranium-238. (Symbol: Pu ) ORIGIN 1940s: from Greek ‘Pluto ’, on the pattern of neptunium, being the next planet beyond Neptune.

Plutonium

Plu to ni um Substantiv, Neutrum Chemie , das |Plut o nium |das Plutonium; Genitiv: des Plutoniums englisch plutonium; nach Pluto radioaktives, metallisches, durch Kernumwandlung hergestelltes Transuran chemisches Element Pu

plutonium

plu to ni um /pluːtóʊniəm /名詞 U 〘化 〙プルトニウム 〘放射性元素; ｟記号 ｠Pu 〙.