A metallic element of the rare earth group; used in lasers; occurs in apatite and monazite and xenotime and ytterbite
A rare metallic element, of uncertain identification, supposed to exist in certain minerals, as gadolinite and samarskite, with other rare ytterbium earth. Symbol Tr or Tb. Atomic weight 150.
Noun
a metallic element of the rare earth group; used in lasers; occurs in apatite and monazite and xenotime and ytterbite
n.
A rare metallic element, of uncertain identification,
supposed to exist in certain minerals, as gadolinite and samarskite,
with other rare ytterbium earth. Symbol Tr or Tb. Atomic weight 150.
Terbium
A rare metallic element, of uncertain identification, supposed to exist in certain minerals, as gadolinite and samarskite, with other rare ytterbium earth. Symbol Tr or Tb. Atomic weight 150.
Usage Examples
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