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1. Oxford Dictionary

   dark energy

   • n.
     a theoretical form of energy postulated to act in opposition to gravity and to occupy the entire universe, accounting for most of the energy in it and causing its expansion to accelerate

   • noun: dark energy, plural noun: dark energies

2. • 釋義

   n.

   名詞

   • 1. a theoretical form of energy postulated to act in opposition to gravity and to occupy the entire universe, accounting for most of the energy in it and causing its expansion to accelerate Einstein's theories allow for the possible existence of dark energy
3. • 更多解釋

   dark energy

   • n.
     a theoretical repulsive force that counteracts gravity and causes the universe to expand at an ... Einstein's theories allow for the possible existence of dark energy

   Oxford American Dictionary