noun
coronal mass ejection; CME
Technical term in solar physics; refers to a large release of plasma and magnetic field from the Sun's corona.
大規模なコロナ質量放出が地球の磁気圏に影響を与えることがある。
A large coronal mass ejection can affect Earth's magnetosphere.
Solar flare: a sudden brightening on the Sun, often associated with CMEs but distinct; a flare is an electromagnetic burst, while a CME is a massive ejection of particles.
Compound of コロナ (corona, from Latin) + 質量 (mass) + 放出 (ejection, release). A direct translation of the English term 'coronal mass ejection'.