atomic number 81
Noun 1. a soft gray 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 (synonym) thallium, Tl (hypernym) metallic element, metal (substance-holonym) zinc blende, blende, sphalerite | ||||
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Atomic number 81 definition was found in categories: Language, Idioms & Slang(1)
Atomic number 81 Definition from Language, Idioms & Slang Dictionaries & Glossaries
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atomic number 81
atomic number 81
n : a soft gray 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 [syn: thallium, tl]
atomic number 81
n : a soft gray 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 [syn: thallium, tl]