Meaning of TL

WordNet Dictionary
	Definition:		[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
	Websites:
	Synonyms:		atomic number 81, thallium
	See Also:		blende, metal, metallic element, sphalerite, zinc blende