Reference meaning
Tl
Last updated
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
Related source terms
thalliumatomic number 81
Source and scope
This definition is reproduced from Princeton WordNet 3.0, sense 14657818-n, under the WordNet 3.0 License. It has not yet received VocabularyBase editorial review. Read the source and license details.