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dilithium

noun

  1. molecular allotrope of lithium known in the gas phase
  2. fictional material in Star Trek
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Wiktionary

Pronunciation: /daɪˈlɪθiəm/

noun

Etymology: Etymology tree Proto-Indo-European *dwóh₁ Proto-Indo-European *dwi- Proto-Hellenic *dwi- Ancient Greek δῐ- (dĭ-)bor. Latin di-bor. English di- English lithium English dilithium From di- + lithium.

  1. The diatomic molecule Li₂ found in the gas phase.
  2. Two lithium atoms in a molecule.
  3. A fictional crystalline mineral in the Star Trek franchise, described as an essential component of anti-matter energy generation systems.

    Fifty years later and it seems like we should—I don’t know if dilithium crystals are out there—but, you know, we should be getting some breakthroughs.