cosmological constant

== English == === Noun === cosmological constant (plural cosmological constants) (physics) A term added by Albert Einstein to his equations of general relativity in order to account for a supposed static universe, since used to describe vacuum energy as a form of dark energy. ==== Usage notes ==== Usually given the symbol Λ (lambda) in equations. ==== Synonyms ==== Λ lambda ==== Coordinate terms ==== dark energy vacuum energy dark sector quintessence phantom energy ==== Translations ====