ニュートリノ星ぼしMeanings1nounneutrino starA hypothetical astronomical object composed primarily of neutrinos; a technical term in astrophysics.ニュートリノ星ぼしは理り論ろん上じょうの天てん体たいで、まだ観かん測そくされていない。A neutrino star is a theoretical celestial body and has not yet been observed.