楕だ円えん銀ぎん河が

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Meanings

1

noun

elliptical galaxy

astronomy

Technical term in astronomy for a galaxy with an ellipsoidal shape and little internal structure.

ellipse

円circle, yen, round

銀silver

河river

渦うず巻まき銀ぎん河が
Spiral galaxy, in contrast to the smooth, featureless appearance of an elliptical galaxy.
不ふ規き則そく銀ぎん河が
Irregular galaxy, lacking a distinct regular shape unlike elliptical galaxies.

Compound of 楕円 (ellipse) and 銀河 (galaxy), directly describing the shape.