|
Definisi 'thulium'
|
|
English to English noun
| 1 |
a soft silvery metallic element of the rare earth group; isotope 170 emits X-rays and is used in small portable X-ray machines; it occurs in monazite and apatite and xenotime |  | source: wordnet30
| 2 |
A rare metallic element of uncertain properties and identity, said to have been found in the mineral gadolinite. | | source: webster1913
|
|
|