Japanese
Etymology
宇宙 (space) + 線 (ray)
Noun
宇宙線 (hiragana うちゅうせん, romaji uchūsen)
- (astronomy, physics) cosmic ray
References
- 2002, Ineko Kondō; Fumi Takano; Mary E Althaus; et. al., Shogakukan Progressive Japanese-English Dictionary, Third Edition, Tokyo: Shōgakukan, ISBN 4095102535.