also: むえき
noun
11th note of the ancient Chinese chromatic scale (approx. C)
Technical term from ancient Chinese music theory; part of the 十二律 (twelve pitches). Used in historical or musicological contexts.
See also: 十二律
無射は十二律の一つで、西洋音楽のCに近い音とされる。
無射 is one of the twelve pitches of the ancient Chinese chromatic scale, said to be close to C in Western music.
noun
ninth month of the lunar calendar
Archaic term for the ninth lunar month, used in classical or historical contexts. Not used in modern everyday Japanese.
旧暦では、無射は九月を指す。
In the old lunar calendar, 無射 refers to the ninth month.
十二律 is the complete set of twelve ancient Chinese chromatic pitches, while 無射 is specifically the eleventh note.
The term originates from ancient Chinese music theory and calendar systems. The exact derivation is uncertain; the kanji 無 (without) and 射 (shoot) are used phonetically or symbolically in this context.