Search Result for "atomic number 81":
Wordnet 3.0

NOUN (1)

1. 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;
[syn: thallium, Tl, atomic number 81]


WordNet (r) 3.0 (2006):

atomic number 81 n 1: 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 [syn: thallium, Tl, atomic number 81]