とうせん
Meanings
Noun
1. isopleth; isogram; isoline; contour line; isarithm
Kanji used
equal
numeric value
line
Pitch accent
うちせん
Composed of
equal value; equivalence
line; stripe; line (e.g. telephone line); wire; ray (e.g. X-ray); beam; line (e.g. of a railroad)