正せい弦げん曲きょく線せんMeaningsNounNo-adjective1. sine curveKanji used正correct弦string (of an instrument)曲curved線linePitch accentせいげんきょくせんComposed of正せい(logical) true; regular; 10^40; ten duodecillion; original; positive; greater than zero; thesis (in dialectics)Noun弦げんbowstring; string (of a shamisen, etc.); stringed instrument; chordNoun曲きょく線せんcurveNoun