noun
cosmological principle
Technical term in cosmology stating that the universe is homogeneous and isotropic on large scales.
宇宙原理は、宇宙が一様で等方的であるという仮定です。
The cosmological principle is the assumption that the universe is homogeneous and isotropic.
Compound of 宇宙 (uchū, 'universe') and 原理 (genri, 'principle').