noun
single-stringed Japanese zither
A traditional Japanese instrument with a single string, played with a plectrum or finger picks.
一弦琴は、江戸時代に流行した楽器です。
The single-stringed zither is an instrument that was popular in the Edo period.
Compound of 一 (one), 弦 (string), and 琴 (zither). The exact historical derivation is uncertain, but the term directly describes the instrument's single string.