noun
cosmological constant
Technical term in physics and cosmology, referring to the constant energy density filling space, often associated with dark energy.
アインシュタインは宇宙定数を導入したが、後に「最大の過ち」と呼んだ。
Einstein introduced the cosmological constant but later called it his 'biggest blunder'.
宇宙定数の値は非常に小さいことが観測から示されている。
Observations indicate that the value of the cosmological constant is extremely small.