1. (a unit of capacity equal to the volume of a cube one kilometer on each edge)
cubic kilometer, cubic kilometre
synonim: kilometr sześcienny
synonim: km³
synonim: teralitr
synonim: TL

2. (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)
thallium, Tl, atomic number 81: : synonim: tal