[化] 镥Lu

[医] щb(71号元素)

[ noun ]
a trivalent metallic element of the rare earth group; usually occurs in association with yttrium
<noun.substance>

Lutecium \Lu*te"ci*um\, n. (Chem.)
same as {Lutetium}; -- an older spelling.
[Webster 1913 Suppl. +PJC]


Lutetium \Lu*te"ti*um\, n. (Chem.)
A metallic element separated from ytterbium in 1907, by
Urbain in Paris and by von Welsbach in Vienna. It is a member
of the Lanthanide rare earth group. Symbol, Lu; atomic number
71; atomic weight 174.967 [C=12.011]. Previously spelled
{Lutecium}.
[Webster 1913 Suppl. +PJC]