noun
sole custody; sole parental authority
Legal term referring to a situation where only one parent holds custody and parental rights over a child, as opposed to joint custody.
離婚後、母親が単独親権を持つことになった。
After the divorce, the mother was granted sole custody.
日本では単独親権が一般的だが、共同親権の導入が議論されている。
In Japan, sole custody is common, but the introduction of joint custody is being discussed.