metalithium en · NOUN
Etymology
Etymology tree Ancient Greek μετᾰ́ (metắ) Ancient Greek μετᾰ- (metă-)lbor. English meta- English lithium English metalithium From meta- + lithium.
Meanings
- (uncountable) A heavy isotope of the simplest alkali metal, (symbol Li) with an atomic number of 3 and containing 8 neutrons. Metalithium is an artificial isotope produced by bombarding Lithium 7 with neutrons. It is radioactive, with a half-life of 0.84 seconds.