nld: thulium

Information
has URI	http://lexvo.org/id/term/nld/thulium

Meaning
means	(noun) 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 thulium, Tm, atomic number 69
means	(noun) a soft grey malleable metallic element that resembles tin but discolors on exposure to air; it is highly toxic and is used in rodent and insect poisons; occurs in zinc blende and some iron ores thallium, Tl, atomic number 81