Boost your vocab and unleash your potential!

Recently viewed words:
Definitions of atomic number 81
  1. noun
    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

    Similar: 

Explanation of atomic number 81
My lists:
Recently viewed words: