dilithium /daɪˈlɪθiəm/ noun3 •The diatomic molecule Li₂ found in the gas phase. •A fictional crystalline mineral in the Star Trek franchise, described as an essential component of anti-matter energy generation systems.“Mr. Mayor, we're back from the dilithium crystal mine.” “What a haul! This will power the colony for months!” — 2016 •[in compounds] Two lithium atoms in a molecule.
