noun
green yuzu; unripe yuzu
Refers to the green, unripe stage of the yuzu citrus fruit, often used for its aromatic zest and juice in Japanese cuisine.
See also: 柚子
青柚子の皮をすりおろして、鍋料理に加えると香りが良くなる。
Grating green yuzu peel and adding it to hot pot dishes enhances the aroma.
この時期はまだ青柚子しか手に入らない。
At this time of year, only unripe yuzu are available.
柚子 is the general term for yuzu, including both ripe (yellow) and unripe (green) stages. 青柚子 specifically refers to the green, unripe fruit.
Compound of 青 (ao, 'green, unripe') and 柚子 (yuzu, 'yuzu citrus'). The reading あおゆず is standard; the obsolete reading あおゆ is a contraction.