also: きこく
noun
trifoliate orange; hardy orange
A thorny deciduous shrub or small tree, often used as a rootstock for citrus or as a hedge. The fruit is very sour and not eaten raw.
カラタチの実は小さくて酸っぱい。
The fruit of the trifoliate orange is small and sour.
庭の隅にカラタチの生け垣がある。
There is a trifoliate orange hedge in the corner of the garden.