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 holmic   添加此单词到默认生词本
['hәulmik]
adj.
[化]钬的, 含钬的




    Holmium \Hol"mi*um\, n. [NL., from Stockholm.] (Chem.)
    A rare element of atomic number 67 said to be contained in
    gadolinite. Chemical symbol Ho. Atomic weight 164.93. Valence
    +3. It was detected by spectral absorption bands in 1878 by
    the Delafontaine and Soret, who called it "Element X". Later
    the Swedish chemist Cleve independently discovered it in
    erbia, and named it after his native city Stockholm. The
    first preparation of pure Holmia, the yellow oxide, was not
    made until 1911. --HCP61 -- {Hol"mic}, a.
    [1913 Webster +PJC]

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