かいせん
Meanings
Noun
Physics
1. world line
Kanji used
world
realm
line
Pitch accent
かいせん
Top 42400
Composed of
the world; society; sphere; circle; world-renowned; world-famous
line; stripe; line (e.g. telephone line); wire; ray (e.g. X-ray); beam; line (e.g. of a railroad)