(cosmology, astrophysics, astronomy, physics) A category of dark energy, where dark energy is not fixed in amount nor in density, and continuously increases over time.

(informal) A device or appliance that uses electricity even while switched off. / (informal, derogatory) A person who is emotionally draining.

plural of energy vampire

A designated area for the generation of clean energy such as wind and solar power.

plural of energy park

(chemistry, physics) The amount of energy needed to slow down or stop a reaction.

(organic chemistry) An alkene substituted by two aldehyde groups.

present participle of enemy

simple past tense and past participle of enemy

Characterized by enmity.