English dictionary



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English noun: Tl

1. Tl (substance) 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


Synonymsatomic number 81, thallium


Broader (hypernym)metal, metallic element


Substance meronymblende, sphalerite, zinc blende









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