てんろうせい 天狼星 LinksSentence search for 天狼星Sentence search for てんろうせいKanji details for 天, 狼 and 星Edit in JMdict Noun1. Sirius (star in the constellation Canis Major); Alpha Canis Majoris; the Dog StarAstronomy, See also シリウス Discussions Log in to talk about this word.