Moon; lunar
Classical or literary term for the Moon, often used in contrast with 太陽 (the Sun). In modern Japanese, 月 is the everyday word.
See also: 太陽
太陰暦は月の満ち欠けを基準にしている。
The lunar calendar is based on the phases of the Moon.
太陰と太陽は陰陽の象徴として扱われる。
The Moon and the Sun are treated as symbols of yin and yang.
greater yin
In yin-yang philosophy, the greater yin, the extreme of yin, contrasted with 小陰 (lesser yin). A technical term used in traditional cosmology and medicine.
See also: 小陰
太陰は陰陽説で最も陰の性質が強い状態を指す。
In yin-yang theory, greater yin refers to the state with the strongest yin nature.