| 释义 |
thu·li·um
\-_lēəm\ noun
(-s)
Etymology: New Latin, from Thule + -ium
: a trivalent metallic element of the rare-earth group that occurs combined in rare minerals associated with granite or pegmatite veins and that forms pale green compounds resembling those of erbium, ytterbium, and lutetium in solubility — symbol Tm; see element table |