Metalithium
noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 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. uncountable
Etymology
From meta- + lithium.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.